Seseragi®'s components Effects on air conditioning Effects on humidity Heat storage element Maintenance
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Image of the Seseragi with a futuristic, cool background Ductless heat exchange ventilation system 'Seseragi®' patented up to 93% heat recovery
cool, futuristic background image

The ductless heat exchange system "Seseragi®" constantly provides fresh air, maintaining a comfortable indoor environment. It also contributes to energy saving by prolonging the effects of air conditioning.

1. Air exhaust

WINTER
Used air is vented outwards, passing through the "Seseragi®". In the process, the air's thermal energy is stored in the heat storage element.

SUMMER
The chilliness of air-conditioned air is stored in the heat storage element, while any impurity is expelled.

2. Air supply

WINTER
Cold air passes through the "Seseragi®" into the room, the heat saved by the heat storage element is carried over, resulting in a warm and comfortable inflow of air.

SUMMER
Hot and moist air gets cooled down by the previously stored chilliness in the heat storage element, regulating both temperature and moisture to comfortable levels.

Cross section view of a house with the 'Seseragi®' in use.

*The "Seseragi®" ventilation system switches between air supply and exhaust every 70 seconds. This process keeps the room temperature comfortable.

Seseragi's components

'Seseragi®' components
Seseragi®'s workflow diagram

The ductless heat exchange ventilation system switches repeatedly between inflow and outflow by changing the rotation direction of the fan. When exhausting, thermal energy and moisture are preserved in the heat storage element and released indoors when supplying air. Simple maintainability and the ability to easily clean the heat storage element prevent an efficiency decrease due to clogging. This guarantees a stable intake of fresh air.

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70 sec

35 sec

17.5 sec

52.5 sec

An arrow pointing left of right depending on the state of the animation the seseragi 2 arrows pointing left of right depending on the state of the animation An arrow pointing left of right depending on the state of the animation Image of a fan with counter clockwise rotation Image of a fan with clockwise rotation

In the next 70 second interval, the room is supplied with fresh air, while simultaneously releasing the heat.

During the first 70 second interval, used air is expelled, while heat is retained.

Clock face image
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Effects on air conditioning

Winter

Conventional ventilation system

conventional ventilation system winter temperature illustration

Temperature exchange efficiency 0%

With conventional ventilation systems, cold outside air enters the room unhindered. People increase heating as a countermeasure.

conventional ventilation system winter room temperature heat image

The temperature near the inlet drops to cold 6°C (42.8°F). The room overall is cold at 13°C (55.4°F) and needs to be heated.

"Seseragi®"

'Seseragi®'winter temperature illustration

Temperature exchange efficiency 93%!

Heat exchange recovers up to 93% of the thermal energy. Air is supplied at close to normal room temperature levels.

'Seseragi®'winter room temperature heat image

The temperature drop near the air inlet is only ~1°C, while the rest of the room is stable at ~19°C (66.2°F); a comfortable temperature.

Summer

Conventional ventilation system

conventional ventilation system summer temperature illustration

Temperature exchange efficiency 0%

With conventional ventilation, hot outside air enters the room freely. Only constant air conditioning can regulate the room temperature to comfortable levels.

conventional ventilation system summer room temperature heat image

Hot air enters unhindered and the temperature reaches about 33°C (91.4°F) near the air inlet. Most of the room is over 29°C (84.2°F) warm, which necessitates cooling operations.

"Seseragi®"

'Seseragi®'summer temperature illustration

Temperature exchange efficiency 93%!

With heat exchange technology, ~93% of the air's chilliness can be preserved. Air is supplied at close to comfortable temperature levels.

'Seseragi®'summer room temperature heat image

Even near the "Seseragi®", the air is hardly effected by the outside heat and kept at ~29°C (84.2°F). The rest of the room is at ~28°C (82.4°F). Comfortable, if combined with the appropriate humidity.

Effects on humidity

Winter

Conventional ventilation system

conventional ventilation system winter humidity illustration

Humidity recovery rate 0%

Dry air from the outside dries out the air inside, which can cause skin problems or a cold.

"Seseragi®"

'Seseragi®'winter humidity illustration

Humidity recovery rate over 80%!

Due to the humidity sensor, the appropriate humidity can be transferred to the inflow of air and thus, reduce the need to humidify.

Summer

Conventional ventilation system

conventional ventilation system summer humidity illustration

Sticky, hot air enters the room freely, increasing the need to dehumidify.

"Seseragi®"

'Seseragi®' summer humidity illustration

A sensor enables convenient humidity adjustment.

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Utility cost reduction

By installing a heat exchange ventilation system, the loss of internal heat due to ventilation can be minimized, saving power consumed for heating and cooling. It is more power conservative compared to ducted ventilation types, as there is no need to pump air through long ducts, which requires a lot of power. Tempting, that all this can be realized simply by the ductless structure with low air resistance.

Illustration of winter air conditioning use in a house without heat exchange ventilation. Illustration of winter air conditioning use in a house with the 'Seseragi®'

◆Conventional ventilation system (Type 3) without heat exchange

In winter for example, when using a conventional ventilation system without heat exchange,
the energy cost for a single winter will be about 530$.

◆"Seseragi®" with heat exchange

The "Seseragi®" has a 93% heat exchange efficiency, so heating costs will be about 167$,
as 93% of the heat can be recovered.
Therefore, you can save approximately 68%.

Power consumption analysis

conventional ventilation house example

24W

Conventional ventilation

Conventional ventilation is a simple ductless structure, allowing air to flow easily. The efficiency of the AC motor is poor, though. Power consumption is not as high as with central ventilation, but without heat exchange, the cost for air conditioning is significant.

Central ventilation house example

90W

Central ventilation

Centralized heat exchange ventilation have a high strain on their long, complex ducts, as it is necessary to pump air through the whole house with high air resistance. As power required to pump air to each room is high, power consumption increases accordingly.

'Seseragi®' house example

6.4W super energy saving

"Seseragi®"

The "Seseragi®" is a combination of a ductless construction with low air resistance and the latest super energy saving DC motor technology. The power consumption is only 6.4 W/h in a 4 unit set. Due to this ultra-low power consumption, the electricity bill will only be ~4.6$ annually.

Reduced energy costs, but higher electricity costs to maintain constant ventilation...
Does this not diminish the saving effect?

Model Power consumption Annual use time Electricity charges Annual electricity bill
"Seseragi®" (4 unit set) 0.0064kW 8,760h 0.23$/kWh

0.0064kWx8760hx0.23$/kWh

=12.89$(MAX)
Normal operation(Air flow level 1)4.35$/year
Central ventilation 90W

(prediction)
(=0.090kW)

8,760h 0.23$/kWh

0.090kWx8760hx0.23$/kWh

=181.332$

Using the "Night Purge Mode" to cool in summer

One-directional air flow funtion of the 'Seseragi®'

In summer, the outside temperature may be lower than inside, such as in the morning or at night. In that case, it is possible to switch to "Night Purge Mode", which replaces the warm inside air directly with fresh outside air to lower the temperature. Switching to this ventilation mode reduces the cooling load of the air conditioner, saving energy.

Energy saving simulation [Hokkaido Asahikawa city]

Simulation setting table

Part Thermal insulation specification Part area A[m²] Heat penetration coefficient U[W/m²K] Coefficient H[-] Heat loss A · U · H [W/K] Heat loss coefficient Q[W/m²K]
ceiling Foam polyurethane 300mm 62.11 0.11 1.0 6.865 0.049
Outer wall GW16K 105mm + EPS board 50mm 110.59 0.27 1.0 29.599 0.210
Outer Wall B GW16K 105mm + EPS board 50mm 0.00 0.27 1.0 0.000 0.000
Floor area GW16K 25mm + EPS board 50mm 23.88 0.32 1.0 7.678 0.055
Floor area B GW16K 25mm + EPS board 50mm 0.00 0.32 1.0 0.000 0.000
Floor Rigid urethane foam 120mm 54.26 0.27 0.7 10.376 0.074
Floor B HGW16K 180mm 62.11 0.26 0.7 11.164 0.079
Foundation EPS board 75mm - - 1.0 33.212 0.236
Foundation B EPS board 75mm - - 1.0 0.000 0.000
Aperture - 40.25 - 1.0 187.148 1.329
Ventilation Ventilation frequency 0.5 times(93%heat exchange ventilation) 338.14 - 1.0 15.181 0.108
Considerable floor space - 140.82 - 1.0 - -
Whole house 301.223 2.139

Simulation result table (in case of conventional ventilation)

0 Whole house Per 1 m²
Heat loss coefficient[W/K] 345.21 2.45
Summer solar radiation acquisition coefficient[-] 19.195 0.075
Annual heating/cooling energy consumption Heating Cooling Total heating and cooling
Whole house Per 1 m² Whole house Per 1 m² Whole house Per 1 m²
Heat amount[kWh] 25,624 182.0 142 1.0 25,766 183.0
Electricity consumption[kWh/㎡] 10,249 72.8 28 0.2 10,278* 73.0
CO² generated[kg] 4,909 34.9 4923.1 35.0 9833 69.8

*Annual power consumption per 1 m² of space

Simulation result table (when using the "Seseragi®")

0 Whole house Per 1 m²
Heat loss coefficient[W/K] 301.22 2.14
Summer solar radiation acquisition coefficient[-] 19.195 0.075
Annual heating/cooling energy consumption Heating Cooling Total heating and cooling
Whole house Per 1 m² Whole house Per 1 m² Whole house Per 1 m²
Heat amount[kWh] 20,724 147.2 334 2.4 21,057 149.5
Electricity consumption[kWh/m²] 8,289 58.9 67 0.5 8,356* 59.3
CO² generated[kg] 3,971 28.2 4002.6 28.4 7973 56.6

*Annual power consumption per 1 m² of space

The simulation of the Seseragi's effects on energy saving resulted in a total saving of
1,922 kWh/m² of electricity consumption per square meter of space.

Monthly simulation graphs

Conventional ventilation

Monthly energy consumption graph of a house with conventional ventilation in hokkaido.
0 January February March April May June July August September October November December Total
Heating DD[°C・day] 641.66 559.63 464.02 255.34 94.33 25.14 3.06 1.80 20.89 134.33 324.34 568.16 3092.71
Percentage of each month[%] 20.75 18.10 15.00 8.26 3.05 0.81 0.10 0.06 0.68 4.34 10.49 18.37 100.00
Cooling DD[°C・day] 0.00 0.00 0.00 0.00 0.00 3.20 9.21 2.09 0.00 0.00 0.00 0.00 14.50
Percentage of each Month[%] 0.00 0.00 0.00 0.00 0.00 22.07 63.52 14.41 0.00 0.00 0.00 0.00 100.00
Oil consumption[ℓ] 607.9 530.2 439.6 241.9 89.4 23.8 2.9 1.7 19.8 127.3 307.3 538.2 2929.9
Heating energy[kWh] 5316.3 4636.6 3844.5 2115.5 781.5 208.3 25.3 14.9 173.1 1113.0 2687.2 4707.3 25623.6
Cooling energy[kWh] 0.0 0.0 0.0 0.0 0.0 41.3 119.0 27.0 0.0 0.0 0.0 0.0 187.3

January energy
consumption: 5316 kWh

"Seseragi®"

Monthly energy consumption graph of a house with the 'Seseragi®' in hokkaido
0 January February March April May June July August September October November December Total
Heating DD[°C・day] 612.90 533.64 435.17 228.25 76.24 17.90 1.56 0.67 13.01 111.09 296.76 539.40 2866.59
Percentage of each month[%] 21.38 18.62 15.18 7.96 2.66 0.62 0.05 0.02 0.45 3.88 10.35 18.82 100.00
Cooling DD[°C・day] 0.00 0.00 0.00 0.00 0.00 7.94 17.41 9.96 0.86 0.00 0.00 0.00 36.17
Percentage of each month[%] 0.00 0.00 0.00 0.00 0.00 21.95 48.13 27.54 2.38 0.00 0.00 0.00 100.00
Oil consumption[ℓ] 506.6 441.1 359.7 188.7 63.0 14.8 1.3 0.5 10.8 91.8 245.3 445.9 2369.6
Heating energy[kWh] 4430.9 3857.9 3146.0 1650.1 551.2 129.4 11.3 4.8 94.1 803.1 2145.4 3899.5 20723.6
Cooling energy[kWh] 0.0 0.0 0.0 0.0 0.0 74.4 163.1 93.3 8.1 0.0 0.0 0.0 338.8

January energy
consumption: 4430 kWh

Annual savings with the "Seseragi®"

It can be seen that the energy saving effect of the "Seseragi®"
saves about 20% when considering heating and electricity costs.

Electricity savings
difference

-998.47$

a lightbulb

Heating /
Electricity bill

[0.2$/1kWh]

Hokkaido annual electricity bill comparison when using the 'Seseragi®', central ventilation and conventional ventilation.

Energy saving simulation [Tokyo]

Simulation setting table (in case of conventional ventilation)

Part Thermal insulation specification Part area A[m²] Heat penetration coefficient U[W/m²K] Coefficient H[-] Heat loss A・U・H・[W/K] Heat loss coefficient Q[W/m²K]
Ceiling High performance phenolic foam 200 mm 47.67 0.11 1.0 5.118 0.052
Outer wall High performance phenolic foam 90 & 45 mm 143.22 0.27 1.0 38.666 0.395
Floor area High performance phenolic foam 25 & 45 mm 9.18 0.27 1.0 2.497 0.026
Foundation High performance phenolic foam 100 mm - - 1.0 21.698 0.222
Aperture - 35.90 - 1.0 24.442 0.250
Ventilation Ventilation frequency 0.6 times 282.36 - 1.0 59.296 0.607*
Considerable floor space - 97.77 - 1.0 - -
Whole house 151.717 1.552

*Heat loss coefficient in ventilation

Annual heating/cooling energy consumption Heating Cooling Total heating and cooling
Whole house Per 1 m² Whole house Per 1 m² Whole house Per 1 m²
heating amount[kWh] 7301.2 74.7 4816.7 49.3 12117.9 124.0
Electricity consumption[kWh/m²] 3650.6 37.4 1605.6 16.4 5256.2* 53.8
CO² generated[kg] 1233.9 12.6 542.7 5.6 1776.5 18.2

*Total annual power consumption per 1 m² of space

Simulation setting and result tables (when using "Seseragi®")

Part Thermal insulation specification Part area A[m²] Heat penetration coefficient U[W/m²K] Coefficient H[-] Heat loss A・U・H・[W/K] Heat loss coefficient Q[W/m²K]
Ceiling High performance phenolic foam 200 mm 47.67 0.11 1.0 5.118 0.052
Outer wall High performance phenolic foam 90 & 45 mm 143.22 0.27 1.0 38.666 0.395
Floor area High performance phenolic foam 25 & 45 mm 9.18 0.27 1.0 2.497 0.026
Foundation High performance phenolic foam 100 mm - - 1.0 21.698 0.222
Aperture - 35.90 - 1.0 24.442 0.250
Ventilation Ventilation frequency 0.6 times 282.36 - 1.0 59.296 0.150*
Considerable floor space - 97.77 - 1.0 - -
Whole house 151.717 1.552

*Heat loss coefficient 0.45 W/m²K reduction

Annual heating/cooling energy consumption Heating Cooling Total heating and cooling
Whole house Per 1 m² Whole house Per 1 m² Whole house Per 1 m²
Heating amount[kWh] 4068.7 41.6 1994.5 20.4 6063.2 62.0
Electricity consumption[kWh/m²] 2034.4 20.8 664.8 6.8 2699.2* 27.6
CO² generated[kg] 687.6 7.0 224.7 2.3 912.3 9.3

*Total annual power consumption per 1 m² of space

The energy saving effects simulation of "Seseragi®" resulted in a total saving of
2,557 kWh/m² of electricity consumption per square meter of space.

Besides costs for heating, Tokyo also has a lot of cooling costs!!

Monthly simulation

Conventional ventilation

Monthly energy consumption graph of a house with conventional ventilation in tokyo.
0 January February March April May June July August September October November December Total
Heating DD[°C・day] 265.79 237.54 149.99 44.56 6.41 0.04 0.00 0.00 0.00 7.39 76.08 183.37 971.17
Percentage of each month[%] 27.37 24.46 15.44 4.59 0.66 0.00 0.00 0.00 0.00 0.76 7.83 18.88 100.00
Cooling DD[°C・day] 0.00 0.00 0.00 2.17 23.52 62.99 173.45 194.22 114.88 14.64 0.28 0.00 585.95
Percentage of each month[%] 0.00 0.00 0.00 0.37 4.01 10.75 29.90 33.15 19.60 2.50 0.05 0.00 100.00
Oil consumption[ℓ] 228.5 204.2 128.9 38.3 5.5 0.0 0.0 0.0 0.0 6.4 65.4 157.6 834.8
Heating energy[kWh] 1998.2 1785.8 1127.6 335.0 48.2 0.3 0.0 0.0 0.0 55.5 572.0 1378.6 7301.2
Cooling energy[kWh] 0.0 0.0 0.0 17.9 193.2 517.6 1425.4 1596.0 944.0 120.3 2.3 0.0 4816.7

January energy
consumption: 1998 kWh

"Seseragi®"

Monthly energy consumption graph of a house with the 'Seseragi®' in tokyo.
0 January February March April May June July August September October November December Total
Heating DD[°C・day] 296.47 265.11 176.53 56.43 8.68 0.06 0.00 0.00 0.00 10.17 92.55 211.40 1117.41
Percentage of each month[%] 26.53 23.73 15.80 5.05 0.78 0.01 0.00 0.00 0.00 0.91 8.28 18.92 100.00
Cooling DD[°C・day] 0.00 0.00 0.00 0.00 11.4 42.00 140.83 159.70 87.70 5.08 0.00 0.00 14.50
Percentage of each month[%] 0.00 0.00 0.00 0.00 2.57 9.47 31.76 36.02 19.78 1.15 0.00 0.00 100.00
Oil consumption[ℓ] 123.4 110.4 73.5 23.5 3.6 0.0 0.0 0.0 0.0 4.2 38.5 88.0 465.2
Heating energy[kWh] 1079.5 965.3 642.8 205.5 31.6 0.2 0.0 0.0 0.0 37.0 337.0 769.8 4068.7
Cooling energy[kWh] 0.0 0.0 0.0 0.0 50.9 187.5 628.8 713.1 391.6 22.7 0.0 0.0 1994.5

January energy
consumption: 1079 kWh

Annual savings with the "Seseragi®"

It can be seen that the energy saving effect of the "Seseragi®"
saves about 50% when considering heating and electricity costs.

Electricity savings
difference

-1,239$

a lightbulb

Heating /
Electricity bill

[0.2$/1kWh]

Tokyo annual electricity bill comparison when using the 'Seseragi®', central ventilation and conventional ventilation.
Inquiry about "Seseragi®" Request for quotation

Heat storage element analysis

Seseragi's heat storage element

Ceramic heat storage element 'HEXAGLOT®'

【semi-permanent】Ceramic heat storage element

Temperature diagram when using the HEXAGLOT®.

Due to the alternating fan rotation feature of the "Seseragi®", the temperature difference between the heat storage element and the air passing through the inside is 2 to 3°C or less. This temperature difference is too small to reach the dew point. Thus, condensation does not occur.

Heat storage element of a duct type heat exchange ventilation system

Paper-made heat storage element of a ducted ventilation system.
Explanation diagram of the paper heat storage element of a ducted ventilation system.

【Consumable】Paper heat exchange element

In case of a duct type heat exchange ventilation system, the heat storage element is like a cardboard; a multilayered, thin paper structure. Flowing air passes through each layer, where it gets sandwiched to exchange temperature and humidity.

At that time, since the indoor air and the outdoor air directly intersect, a large temperature difference occurs. The warm air cools down rapidly, falls below the dew point and condensation occurs.

Condensation occurs because air with a temperature difference of 20°C (36°F) intermingles.

Duct type ventilation system's heat storage element covered by mold.
Duct type ventilation system's heat storage element covered by mold.

Dirt, such as dust is easily clogged in the cardboard due to its grooved structure. Following the temperature difference, condensation occurs. When that happens, mold forms. Since the material is paper, mold is likely to spread.

Sanitary problems in ducted heat exchange ventilation systems

"Seseragi®"

Floor plan showing air circulating through ducts when using a 'Seseragi®'.

The "Seseragi®" is installed separately and does not pump impure air through the whole house.

Duct heat exchange ventilation

Floor plan showing air circulation through ducts with duct-type ventilation systems.

With the central heat exchange ventilation system, all air passes through the heat storage element. Used air that has circulated through the whole house, including the toilet and bathroom, intersects with the fresh air.

Image and figure

Air flow image of a conventional ventilation system.

Microscope magnification

Paper filter magnification. Image of particles stopped by a paper filter.
heat humidity dirt odor

Water vapor and impure air, contaminated by toilet odor, VOC and CO2, will return to the room with the inflowing air
through the paper filter. Some air is leaked between the air supply and exhaust. The heat exchange efficiency
correction factor indicates a 10% leakage in most products (correction factor of 0.9).

Maintenance

Designed for easy maintainability

How to wash the 'Seseragi®': take off the cover, pull the ceramic unit out, wash under flowing water.

Comfortable and clean ventilation requires regular maintenance. The "Seseragi®" is designed with priority on easy maintenance
to minimize the burden on the client. Thus, it can achieve highly hygienic and economical heat exchange ventilation.

The 'Seseragi®' can easily be taken off the wall.

The "Seseragi®" is mounted on a wall for handy component removal.

The 'Seseragi®' is machine washable.

The new "Gauss Fan 03" fan unit of the "Seseragi®" is completely waterproof (IP 68 compliant). Not only the ceramic storage element but also the fan are fully washable.

A woman standing on a shaking ladder tries to open a hatch in the ceiling.

In the case of duct type ventilation system, maintenance of the ceiling duct can only be done by a specialist.

When replacing the filter, mold and dust still remain inside the duct and on the fan blades. This causes polluted air to circulate from room to room, resulting in a hygienic problem.

Maintenance is a burden on health and finance.

A dirty duct Dirty fan blades.

Duct type ventilation: inside view of a duct and a fan blade.

Dust and mold are accumulating on the inside of the duct and on the fan blades. The heat exchange element is relatively easy to replace, but the ducts and the small fan blades can not be cleaned so easily. Even if the heat exchange element is replaced, mold still remains in the duct, which will never return to its original clean state.

Inquiry about "Seseragi®" Request for quotation

Air freshener・Pollen・PM2.5

"Seseragi®"

The 'Seseragi®' filter prevents dust and pollen to get in.

The "Seseragi®" is equipped with a high-performance filter that cuts 98% of pollen. Thanks to the fine texture, that does not even allow pollen to pass, dust and mold spores in the air are also intercepted.

Conventional ventilation

conventional ventilation filters are coarse and allow pollen or dust to get in.

Conventional ventilation systems have a coarse filter, allowing pollen and dust to enter.

High-performance filter to remove pollen and PM2.5

We equipped the "Seseragi®" with an air freshening filter, which removes 98% of fine pollen. This filter has a two-layer structure,
cleaning the air in two steps: first, dust particles are taken out of the air by a medium-performance filter. The 2nd layer then removes
pollen particles with a high-performance filter. As a result, the durability of the high-performance filter has been significantly improved,
and the amount of pollen, PM2.5 and other particles that enter the house can be greatly reduced to maintain a clean, healthy environment.

◆Typical dust particles

Dust particle symbol

Dust

Pollen particle symbol

Pollen

Mold spore particles symbol

Mold spores

Pet symbol

Pet fur

Mite symbol

Mite corpses and waste

MP2.5 particles symbol

PM2.5

Removal of over 99% of harmful substances

Size comparison of air pollutants.

Seseragi®'s high-performance filters

You can choose the most suitable filter according to your housing environment.

New design since May 2019

◆PM2.5・Pollen filter

The new, round PM2.5・Pollen filter.

Protection against

Dust particle symbol.

dust

Pollen particles symbol.

pollen

Mold spore particles symbol.

mold spores

Mite symbol.

mite corpses and waste

Pet hair symbol.

pet fur

PM2.5 particles symbol.

PM2.5

◆Stadard filter included

The new round standard filter.

Protection against

Dust particle symbol.

dust

Previous versions

◆Deodorization filter

Deodorization filter.

Protection against

Dust particle symbol.

dust

Pollen particles symbol.

pollen

Mold spore particles symbol.

mold spores

Mite symbol.

mite corpses and waste

Pet hair symbol.

pet fur

Bacteria symbol.

bacteria

Fume particles symbol.

fumes

◆Antibacterial filter

Antibacterial filter.

Protection against

Dust particle symbol.

dust

Pollen particles symbol.

pollen

Mold spore particles symbol.

mold spores

Mite symbol.

mite corpses and waste

Pet hair symbol.

pet fur

Bacteria symbol.

bacteria

◆PM2.5・Pollen filter

PM2.5・Pollen filter

Protection against

Dust particle symbol.

dust

Pollen particles symbol.

pollen

Mold spore particles symbol.

mold spores

Mite symbol.

mite corpses and waste

Pet hair symbol.

pet fur

PM2.5 particles symbol.

PM2.5

◆Standard filter included

The standard filter.

Protection against

Dust particle symbol.

dust

More space at home

A closet containing a big machine for ventilation.

Duct type systems reduce storage space

An empty closet.

When using the "Seseragi®", storage space can be freed up!

The duct type ventilation system takes up a lot of installation space. Moreover, it requires high power to ventilate each room, resulting in additional restrictions regarding the place of installation. You can't set it up in the bedroom. You see that space is not the only factor when planning the design of a house. The ductless "Seseragi®" will not bother you with the installation location. Ideal for narrow houses and renovations.

"Seseragi®" lineup

Fan unit

Gauss Fan GF03

Heat exchange efficiency

93%

Air flow
(turbo function)

80 m³/h

power consumption
(MAX)

1.6 W/h

Specific power consumption

0.04 W/m³・h

Electricity charges per unit
(1 kW = 0.25$)

1.32$

Heat storage element

Honeycomb
cartridge type

Heat storage element diameter

150 ⌀

Heat storage element length

150 mm

Corresponding outer wall thickness
(KK2d)

110 ~ 380 mm

Outer sleeve tube shape

165 mm

Sleeve length

400 mm

Inquiry about "Seseragi®" Request for quotation