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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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Bard 3.5-6.0 ton Wall Mount Supply Sleeve 42/70 S

085592

Bard 3.5-6.0 ton Wall Mount Supply Sleeve 42/70 S

Regular Price: $26.00

Special Price: $21.00

Honeywell ARD6TZ 6" Automatic Round Damper

ARD6TZ-812500

Honeywell ARD6TZ 6" Automatic Round Damper

Regular Price: $109.00

Special Price: $88.00

Honeywell ARD8TZ 8" Automatic Round Damper

812510

Honeywell ARD8TZ 8" Automatic Round Damper

Regular Price: $128.00

Special Price: $102.00

Honeywell ARD9TZ 9" Automatic Round Damper

812518

Honeywell ARD9TZ 9" Automatic Round Damper

Regular Price: $139.00

Special Price: $111.00

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

Special Price: $108.00

Honeywell ARD12TZ 12" Automatic Round Damper

812530

Honeywell ARD12TZ 12" Automatic Round Damper

Regular Price: $139.00

Special Price: $111.00

Honeywell ARD14TZ 14" Automatic Round Damper

812540

Honeywell ARD14TZ 14" Automatic Round Damper

Regular Price: $145.00

Special Price: $116.00

Honeywell ARD16TZ 16" Automatic Round Damper

812541

Honeywell ARD16TZ 16" Automatic Round Damper

Regular Price: $151.00

Special Price: $121.00

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

Bard 1.5-2 ton Wall Mount Return Sleeve18/24R

085490

Bard 1.5-2 ton Wall Mount Return Sleeve18/24R

Regular Price: $18.00

Special Price: $14.00

Bard 1.5-2 ton Wall Mount Supply Sleeve-18/24S

085495

Bard 1.5-2 ton Wall Mount Supply Sleeve-18/24S

Regular Price: $18.00

Special Price: $14.00

Bard 2.5-3 ton Wall Mount Return Sleeve 30/36 R

085586

Bard 2.5-3 ton Wall Mount Return Sleeve 30/36 R

Regular Price: $21.00

Special Price: $17.00

Bard 2.5-3 ton Wall Mount Supply Sleeve 30/36 S

085588

Bard 2.5-3 ton Wall Mount Supply Sleeve 30/36 S

Regular Price: $21.00

Special Price: $17.00

Bard 1.0 Ton Wall Mount Supply Grille 17x5 VH

85492

Bard 1.0 Ton Wall Mount Supply Grille 17x5 VH

Regular Price: $83.00

Special Price: $66.00

Bard 1.5-2.0 Ton Wall Mount Supply Grille 20x8 VH

085505

Bard 1.5-2.0 Ton Wall Mount Supply Grille  20x8 VH

Regular Price: $102.00

Special Price: $82.00

Bard 2.5-3.0 Ton Wall Mount Supply Grille 28X8 VH

085535

Bard 2.5-3.0 Ton Wall Mount Supply Grille 28X8 VH

Regular Price: $116.00

Special Price: $93.00

Bard 3.5-6.0 Ton Wall Mount Supply Grille 30X10 VH

085565

Bard 3.5-6.0 Ton Wall Mount Supply Grille 30X10 VH

Regular Price: $136.00

Special Price: $109.00

Bard 8201-126 PHASE MONITOR

88136

Bard 8201-126  PHASE MONITOR

Regular Price: $95.00

Special Price: $76.00

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

Special Price: $85.00

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

Special Price: $102.00

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

Special Price: $48.00

Bard 5 Kw Elec Heat Kit 230/1 Phase W18AB (EHW1TAB-A05)

87140

Bard 5 Kw Elec Heat Kit 230/1 Phase  W18AB (EHW1TAB-A05)

Regular Price: $226.00

Special Price: $181.00

Bard 8 Kw Elec Heat Kit 230/1 Phase W24AB (EHW2TAB-A08)

87141

Bard 8 Kw Elec Heat Kit 230/1 Phase W24AB (EHW2TAB-A08)

Regular Price: $258.00

Special Price: $206.00

Bard 6 Kw Electric Heat Kit 208-230/3 W24AB (EHW2TA-B06)

87132

Bard 6 Kw Electric Heat Kit 208-230/3 W24AB (EHW2TA-B06)

Regular Price: $335.00

Special Price: $268.00

Bard 6 KW Elec Heat Kit 460/3 Phase W24AB (EHWH24B-C06)

86117

Bard 6 KW Elec Heat Kit 460/3 Phase W24AB (EHWH24B-C06)

Regular Price: $394.00

Special Price: $315.00

Bard 10 KW Elec Heat Kit 208-230/1 Ph W30-36AA (EHW3TA-A10)

87127

Bard 10 KW Elec Heat Kit 208-230/1 Ph W30-36AA (EHW3TA-A10)

Regular Price: $284.00

Special Price: $227.00

Bard 9 Kw Elec Heat Kit 230/3 Phase W30AB (EHW3TA-B09)

87133

Bard 9 Kw Elec Heat Kit  230/3 Phase W30AB (EHW3TA-B09)

Regular Price: $355.00

Special Price: $284.00

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