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Healthy Homes, Healthy People. Healthy Living for both you and your home. Your House. Think of your home as a living organism It is a system, interdependent on itself Much like your body, if one system is in distress it affects your whole body. Exterior of Home. Do an exterior check

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Healthy homes healthy people

Healthy Homes, Healthy People

Healthy Living for both you and your home

Your house
Your House

Think of your home as a living organism

It is a system, interdependent on itself

Much like your body, if one system is in distress it affects your whole body

Exterior of home
Exterior of Home

  • Do an exterior check

    • May clue you into potential problems inside

  • Gutters in place? Broken? Missing?

  • Holes and grading

    near foundation?

  • Cracks in foundation?

  • Is a swale needed?

Exterior of house
Exterior of House

  • Trim vegetation from touching home

  • Check for pest entry (critters, termites)

  • Clean window wells, use covers

  • Landscaping blocking flow of water?

  • Attached garage?

    • Chemical fumes

    • Don’t let car idle ~ 7,000ppm startup


  • Who thinks they have a clean home?

  • What does clean mean?

  • What about

    • Allergies

    • Asthma

    • Hypersensitivities?

      40-50 million people

      affected by allergies

Have you thought of
Have you thought of…

  • Pollen

  • Mold spores

  • Bacteria

  • Pet dander

  • Insect parts, poop

  • Skin cells

  • Fabric fibers

    • Carpets, dryer lint

  • Soot

  • Tire particles

  • Off gassing

  • Gas fumes (garage)

  • Fragrances (VOCs)

  • Dryer sheets

  • Candles

  • Enviro Tobacco Smoke

  • Rodents & droppings

  • Feather parts

  • Food crumbs

  • Dust mites

  • Litter boxes

  • Plants

Keep in mind
Keep in Mind…

  • Check

    • For CO detectors and fire detectors

    • For exterior vented exhaust fans

    • Furnace filters

    • Air exchangers

    • Floor vents, duct work

    • Vent pipes (sewer, sump, furnace)

    • For pests

  • Analyze housekeeping

  • ETS

Where we are comfortable
Where we are comfortable…

  • Air temperature

    • 65 F (active) to 80 F (bathing)

  • Air relative humidity:

    • 30-60% (cold climates)

  • Air motion: 20–40 feet per min

  • Surrounding surface temperatures

    • Within 10-15 F of room temperature

How much a ir delivered how
How much air? – Delivered how?

How moves air through buildings?


Exhaust Fan


Mechanical Fans


Stack effect - warm air rising

Healthy homes healthy people

Positive and Negative Pressures

Wind Effect

Stack Effect

Neutral pressure plane

Ashrae 62 2 2010
ASHRAE 62.2-2010

A Wisconsin pilot study conducted in 2004 found that 78% of weatherized units required additional mechanical ventilation under 62.2

Average installed cost, including controls: $525 (2004-2005 prices)

Healthy homes healthy people

ASHRAE 62.2-2010 Table

Table 4.1a: Minimum Ventilation Air Requirements, CFM, New Buildings1


1 ASHRAE 62.2-2010, p 4

Healthy homes healthy people

Base Formula Calculation

Base formula, step by step

Multiply the number of bedrooms + 1 or the number of people by 7.5 CFM per person

Calculate 1 CFM per 100 square feet of floor area:

Add them together

4 people * 7.5 CFM/person = 30 CFM

1500 ft2/100 ft2 per required CFM = 15 CFM

30 CFM + 15 CFM = 45 CFM continuous

Air exchangers
Air Exchangers

Graphic courtesy of Popular Mechanics

Photo courtesy of The US Department of Energy

Mechanical ventilation
Mechanical Ventilation




Vented to exterior???

Complaint of odors
Complaint of odors

Check for fragrance emitters

Candles (ghosting)

Overuse of dryer sheets

Chemicals inside

Off-gassing materials

Wet insulation


Gas – sewer


Remodeling odd finds
Remodeling…odd finds

Unused sewer line


  • Fiber jungles

    • Mites, mold, bacteria, carpet beetles

  • Dirty - Vacuums are “mental feel good” machines

  • Each step can emit 1,000s of irritants

  • Carpet cleaning may worsen issue

    • Wet too long, assists mold growth

  • What about below carpet?

  • Never put carpet on cement

Push for hard floors
Push for Hard Floors

  • Can be vacuumed, swept

  • Mopped

  • Easier to see need to clean

  • Rugs can be cleaned, changed

  • Limits allergens

  • More cost effective long term

    • Recently got carpet removed

      from new LL Govt Center

Healthy homes healthy people

Dander is more the issue


Track in outdoor contaminants



Keep out of the bedroom, especially kids

Water leaks, moisture


RUN fan 30 min after each bath/shower

Caulk/re-caulk shower/tub

Use splash guards

Fix toilet leaks (valves, wax ring)

Control toilet tank condensation

Fix leaks under sink


2 Tbl Salt

  • Leaky faucet

  • Leaky P trap, connections

  • Use range hood during cooking

    • Clean quarterly

  • Check refrigerator drain pan

  • NEVER have carpeting in kitchen

  • Clean up crumbs – pest issues

  • Do dishes everyday


  • Vent to exterior

    • Don’t vent to interior attic, eves, garage, basement….

    • Minimize length - No long runs in cold spaces

    • Hard duct – not according tubing

  • Don’t hang-dry clothing inside

  • Check and fix water hose leaks

  • Don’t use fabric sheets, heavy fragrances

  • Clean exterior vent quarterly, lint trap every use

Living rooms bedrooms
Living rooms/ Bedrooms

“Couch potato asthma”

Dust mites

Crumbs = pest issues

Feather pillows/blankets

Vacuum floors and furniture often

Keep pet free if possible

Living rooms bedrooms1
Living rooms/ Bedrooms

Wash sheets weekly, blankets monthly

Remove stuffed animals or wash often

Keep doors open if possible

Use allergen covers on mattress/pillows

Storage areas
Storage Areas


  • Ensure adequate ventilation

  • Insulate well

    • Horror frost, ice damns

  • Ensure attic hatch is well insulated

  • Ensure duct runs are sealed and insulated

  • Check periodically for issues

  • My problem… ;(


Dirt floor? Cement? Poly installed?

Mechanical operations housed?

Clean or debris?


Plumbing leaks?

Pest intrusion?

Spider webs?


Expansion joint

Dirt? Cement?

Allow for airflow – store on shelving, away from walls

Do not store in cardboard boxes

Dehumidify if needed – keep under 50%

Seal sump pump, check regularly

Condensation, effervescence on walls?

Seal cracks, openings, joints

Lived in basements
Lived in basements

Keep mattresses, clothing off floors

Keep everything away from exterior walls


Flooding a whole new topic
Flooding…a whole new topic

Contaminated or clean flooding?

Remove out ALL porous materials

Dry within 48 hours

Disinfect if needed,

remove sensitive

people from home

Lead paint
Lead Paint

  • Pre 1978 homes

  • Treat pealing/chipping paint as hazard

  • Lower income families more susceptible

  • Damage to

    • Central nervous system, brain

    • Kidneys

    • Stomach

    • Blood cells

Healthy homes healthy people

Think of house as a system…

Top to Bottom * Inside and Out

Doing an assessment
Doing an assessment….




Respect - this is their castle

Ensure they are there for assessment

Brandy toft air quality specialist leech lake band of ojibwe 218 335 7429 air@lldrm org

Brandy Toft

Air Quality Specialist

Leech Lake Band of Ojibwe