There's a profound irony in the act of cleaning your home. The products most people use to clean — the sprays, the bleaches, the fabric softeners, the air fresheners deployed afterwards — introduce a chemical load into the home environment that in many cases significantly exceeds what they're removing.
Indoor air quality studies consistently find levels of volatile organic compounds (VOCs) inside homes that exceed outdoor air concentrations. Cleaning products are one of the primary sources.
◈Key Facts
The products with the most evidence against them
Disinfectant sprays
The pandemic normalised near-constant surface disinfection with quaternary ammonium compound (quat) based sprays. Quats are effective antimicrobials — they do what they claim. The problem is their safety profile beyond their antimicrobial action.
Occupational studies show elevated asthma rates in cleaning workers with regular quat exposure. Animal studies have demonstrated reproductive effects at relevant exposure levels. The issue is compounded by the fact that quats are now ubiquitous — they're in disinfectant wipes, surface sprays, some hand soaps, and many laundry products — making total exposure difficult to quantify.
For everyday household use, soap and water removes pathogens effectively from surfaces. The drive to disinfect everything constantly is largely a product of marketing rather than public health evidence.
Fabric softeners and dryer sheets
These are among the most chemically complex products in the average home and among the least scrutinised. Fabric softeners work by depositing a coating of positively-charged chemicals onto fabric fibres — this is what creates the soft feel. Dryer sheets work similarly.
These coatings contain quaternary ammonium compounds, synthetic fragrances, and various surfactants. Because they're deposited on fabric, they continue off-gassing from clothing, bedding, and towels — items that spend prolonged periods against your skin. The compounds in particular persist and transfer to skin during contact.
Fabric softeners also coat moisture-wicking technical fabrics, eliminating the property they were designed for.
Air fresheners
Conventional air fresheners — sprays, plug-ins, solid air fresheners — do not neutralise odours. They mask them with compounds while simultaneously adding VOCs to the air. Plug-in air fresheners are continuously heating compounds and dispersing them into your breathing air 24 hours a day.
The same concerns discussed in the bathroom section apply here, with the addition of inhalation as the primary route of exposure rather than skin contact.
Bleach and bleach-based cleaners
Sodium hypochlorite (bleach) is an effective disinfectant and stain remover. It also produces chlorine gas when mixed with acids (including some bathroom cleaners and vinegar), chloramines when mixed with ammonia-based cleaners, and VOCs during normal use that can cause respiratory irritation.
The bigger issue is what bleach is mixed with in commercial cleaning products — surfactants, fragrances, thickeners — rather than bleach itself. And the ubiquity of bleach-based products means many people are using them daily on surfaces that don't require disinfection.
What actually works instead
For general surface cleaning: diluted , or a diluted in water, cleans effectively without VOC off-gassing. Neither disinfects at this dilution, but for everyday surface cleaning you don't need disinfection — you need removal of dirt and bacteria to non-harmful levels, which soap achieves.
For actual disinfection (when genuinely needed): diluted isopropyl alcohol (70% is more effective than higher concentrations) or hydrogen peroxide. Both break down into harmless compounds after application.
For laundry: -free detergents from brands like Ecover, Method, or Smol. Skip the fabric softener entirely — in the rinse cycle softens fabric without chemical residue.
For toilets and bathrooms: and a brush does more than most people expect. Citric acid dissolves limescale effectively. Neither introduces VOCs.
For air freshening: the obvious answer is source control — investigate and address the actual cause of odours rather than masking them. Opening windows is the single most effective way to improve indoor air quality.
The marketing of cleaning products has convinced people that a home is only clean if it smells strongly of . That smell is not cleanliness — it's chemical residue.