What people keep running into with indoor air quality
Complaints tagged indoor air quality, each raised by more than one person. One-off posts are not included.
65 recurring problems · 616 people · 23 forums we read
Raised more than once
Most people first.
- 111How to handle a bad contractor who won't fix poor workPaying before inspecting leaves homeowners with little leverage when contractors deliver subpar or unauthorized work. Without a clear path to recourse or refunds for shoddy repairs, people are left feeling cheated and stuck with expensive, unsightly results.
- 37Why does flushing one toilet pull water out of another?Sewer gas odors and severe water siphoning across fixtures usually point to a blocked or inadequate plumbing vent system. When a vent is clogged, flushing a toilet or running another fixture creates suction that pulls water right out of nearby traps, leaving an open path for foul sewer gases to enter the living space.
- 37Why is there a mystery wet dog or sour smell in the house?An unexplained, lingering odor resembling wet dog, sourness, or sweetcorn transfers unpredictably onto household fabrics in rooms like the bedroom, leaving people unable to trace its source. Because the smell appears in random places despite no obvious cause, it prevents occupants from successfully eliminating it.
- 28What to do when an HVAC installation fails inspectionBad HVAC installations often involve dangerous issues like gas leaks, missing thread compound, uninsulated ducts, and mismatched or outdated equipment. These critical safety code violations and missing warranties leave homeowners dealing with failed inspections, hazardous living conditions, and unresolved cleanup costs.
- 26How to clean mold on furniture after rain gets insideRain blowing through open windows can leave moisture on furniture and appliances that triggers unexpected mold growth. Without addressing the underlying moisture, wiping surfaces down with soap is only a temporary fix, and trying to scrub it away while pregnant poses safety worries that often leave people wondering whether to clean or throw out affected items.
- 23Why is my AC not lowering indoor humidity?An air conditioner that cools the house too quickly or is oversized will shut off before it has run long enough to pull moisture out of the air. This leaves indoor humidity stuck above 60 percent, which creates the conditions for mold to grow around the house within a few months.
- 19Why does my house smell like cat urine when there is no visible mess?Pet urine soaks into hidden areas like subfloors and rugs, releasing airborne vapors that circulate through the entire house. Because the source is often invisible to the naked eye, standard surface cleaning fails to clear the odor from the air, leaving the whole home smelling like pee.
- 16How to get cigarette smoke smell out of a rented bedroomThird-hand smoke and tar accumulate deeply in walls and surfaces after years of indoor smoking, which triggers asthma and resists basic cleaning. Eliminating the odor safely requires sealing porous surfaces and washing every hard material without resorting to dangerous ozone generators that aggravate respiratory conditions.
- 16How to know if my HVAC air filter is the right size?An air filter that sticks out from the slot or doesn't sit flush indicates the wrong dimensions, which allows unfiltered dust to bypass the filter and enter the system. Measuring the actual filter slot and comparing it against standard sizing ensures a proper fit that protects the equipment from debris buildup.
- 14How to stop an apartment from smelling like petsPet odors linger quickly in small apartments because limited airflow traps dander, urine, and waste smells in confined living spaces. Regular cleaning and airing out rooms often fail to clear out the trapped odor, causing anxiety about hosting guests or keeping a pet in a compact home.
- 14Why is my ductwork dripping condensation inside the walls?Ductwork running from unconditioned spaces into wall cavities collects condensation on its exterior, causing water to drip into walls. This moisture leads to severe fungal growth and structural damage that often requires tearing out the walls.
- 14How to handle surprise costs found during home repairsOpening up a wall or roof often exposes hidden structural damage that contractors use to trigger sudden price increases and scope changes. This leaves homeowners with torn-apart living spaces and no way to verify whether the newly demanded fees or repair procedures are fair.
- 13How to clean mold on drywall or know when to cut it outSurface sprays only treat top-layer growth, leaving hidden spores inside soaked walls to spread further. Trying to guess whether to patch or cut out the drywall stops people from stopping the damage before it ruins the structure.
- 13Why is my AC air handler wet and smelly?Old HVAC systems accumulate dust and organic growth that trap moisture inside the air handler, causing heavy condensation and persistent foul odors. Resolving this deep-seated contamination in aging units often requires replacing the plenum box or the entire system.
- 13Why is there so much dust and hair in my bed every day?Heavy daily accumulation of hair, dust, and tracked-in debris from pets fills handheld vacuums and sweeps up in handfuls every morning. For anyone who spends most of their time bedbound, this constant buildup forces manual cleaning routines just to clear away daily irritants.
- 11How to stop mold and bad smells in front loader washersFront loader washing machines trap standing water and lack adequate ventilation, turning sealed drums into mold and mildew factories when closed. This persistent moisture buildup creates unpleasant odors and forces people to keep doors open or abandon front loaders altogether.
- 11Why won't my AC cool the house when it's extremely hot outside?Older air conditioners and heat pumps struggle to overcome extreme outdoor temperatures above 95 degrees, causing them to run continuously without reaching the thermostat setpoint. This constant runtime leaves indoor temperatures several degrees too high, preventing the home from staying comfortable during severe heatwaves.
- 11Is a clear fluid leak from my car or heat pump dangerous?Unexpected fluid leaks from equipment like heat pumps or car mufflers can be confusing to diagnose, leaving people unsure whether the liquid is harmless condensation or a hazardous substance like coolant. This uncertainty makes it difficult to know if the problem requires professional attention, or whether to call an HVAC technician, a plumber, or an automotive mechanic.
- 9Why does my diaper pail still smell so bad?Solid foods turn normal diaper smells into an overwhelming blast of stink every time you slide the lid, ruining a pail that worked fine for the first several months. Dealing with this leaves parents exhausted from constantly running outside to throw bags away immediately instead of using the pail.
- 9No room to fit a plumbing vent in tight spacesWhen framing or walls leave zero clearance for a standard plumbing line, you are forced into awkward workarounds like bending pipes, cutting into door frames, or building complex offsets with cleanouts. These restrictions make it nearly impossible to install the vent properly without tearing into surrounding structures.
Comes up alongside
Topics that keep appearing on the same problems — not topics with similar names.