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- What are indoor allergens?

Indoor allergens are biological or chemical substances that trigger the immune system, causing an allergic reaction. Biological sources of allergens include pets, insects, dust mites, plants, bacteria, and mold. Chemical sources are often gases or particles released by items such as building materials, fabrics, glues, paints, solvents, dyes, and perfumes.


- What are the effects of exposure to indoor allergens?

An allergic reaction develops when a person who is sensitive to a particular substance, comes into contact with that substance. Exposures to an allergen can cause a runny nose, sneezing, coughing, difficulty breathing, skin rashes, and watery eyes.


Severe allergic reactions can be life threatening and require immediate medical treatment. Sensitivity to allergens varies between people; for instance, some people are allergic to cats, while others are not. Exposure to other chemicals (e.g., tobacco smoke), in addition to the allergen, can sometimes worsen the symptoms. Repeated or long exposure to the allergen will often make the symptoms worse.


moderate spring and autumn seasons, and very hot summers. So, a heat pump cools in the summer, then provides inexpensive electric heat in the spring and fall.

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Honeywell ARD6TZ 6" Automatic Round Damper

ARD6TZ-812500

Honeywell ARD6TZ 6" Automatic Round Damper

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Honeywell ARD8TZ 8" Automatic Round Damper

812510

Honeywell ARD8TZ 8" Automatic Round Damper

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Honeywell ARD9TZ 9" Automatic Round Damper

812518

Honeywell ARD9TZ 9" Automatic Round Damper

Regular Price: $139.00

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Honeywell ARD18TZ 18" Automatic Round Damper

812519

Honeywell ARD18TZ 18" Automatic Round Damper

Regular Price: $171.00

Special Price: $137.00

Honeywell ARD10TZ 10" Automatic Round Damper

812520

Honeywell ARD10TZ 10" Automatic Round Damper

Regular Price: $136.00

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Honeywell ARD12TZ 12" Automatic Round Damper

812530

Honeywell ARD12TZ 12" Automatic Round Damper

Regular Price: $139.00

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Honeywell ARD14TZ 14" Automatic Round Damper

812540

Honeywell ARD14TZ 14" Automatic Round Damper

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Honeywell ARD16TZ 16" Automatic Round Damper

812541

Honeywell ARD16TZ 16" Automatic Round Damper

Regular Price: $151.00

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Honeywell FC100A1029 Replacement Media Air Filter, 16"x25"

362205

Honeywell FC100A1029 Replacement Media Air Filter, 16"x25"

Regular Price: $37.00

Special Price: $30.00

Armstrong Conversion Kit- Downflow - 2 Thru 3 Ton SPP Models

ACONVR836-148019

Armstrong Conversion Kit- Downflow - 2 Thru 3 Ton SPP Models

Regular Price: $106.00

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Armstrong Conversion Kit- Downflow - 3.5 Thru 5 Ton SPP Models

ACONVR837-148020

Armstrong Conversion Kit- Downflow - 3.5 Thru 5 Ton SPP Models

Regular Price: $128.00

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Armstrong/Lennox Propane (LP) Conversion Kit - All Models Packaged Units

ALPKT841-148045

Armstrong/Lennox Propane (LP) Conversion Kit - All Models Packaged Units

Regular Price: $60.00

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Honeywell FC40R1078 24"X24"X4" Return Grille Media Air Filter

362203

Honeywell FC40R1078 24"X24"X4" Return Grille Media Air Filter

Regular Price: $52.00

Special Price: $41.00

Honeywell FC40R1037 12"X24"X4" Return Grille Media Air Filter

362204

Honeywell FC40R1037 12"X24"X4" Return Grille Media Air Filter

Regular Price: $42.00

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Honeywell FC40R1003 20"X20"X4" Return Grille Media Air Filter

362206

Honeywell FC40R1003 20"X20"X4" Return Grille Media Air Filter

Regular Price: $52.00

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Honeywell FC40R1011 20"X25"X4" Return Grille Media Air Filter

362207

Honeywell FC40R1011 20"X25"X4" Return Grille Media Air Filter

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Honeywell FC40R1029 20"X30"X4" Return Grille Media Air Filter

362208

Honeywell FC40R1029 20"X30"X4" Return Grille Media Air Filter

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Honeywell FC40R1045 14"x25"x4" Return Grille Media Air Filter

362209

Honeywell FC40R1045 14"x25"x4" Return Grille Media Air Filter

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Honeywell FC40R1052 16"X20"X4" Return Grille Media Air Filter

362210

Honeywell FC40R1052 16"X20"X4" Return Grille Media Air Filter

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Honeywell FC40R1060 16"X25"X4" Return Grille Media Air Filter

362211

Honeywell FC40R1060 16"X25"X4" Return Grille Media Air Filter

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Honeywell POPUP2200 Replacement Filter for Space-Guard-2200

363001

Honeywell POPUP2200 Replacement Filter for Space-Guard-2200

Regular Price: $52.00

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Honeywell POPUP2400 Replacement Filter for Space-Guard-2400

363002

Honeywell POPUP2400 Replacement Filter for Space-Guard-2400

Regular Price: $42.00

Special Price: $34.00

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