Detailing a car for allergies.

Allergens are tiny particles: pollen, dust mite debris, pet dander, mould spores and fine dust. In a car, they settle where you are not looking.

• Seats and carpet, especially fabric, which holds particles in its weave.
• Headliner and door cards, where airborne particles land and stay.
• Seams, rails and under the seats, where vacuums rarely reach.
• Vents and the cabin air filter, which see every bit of air that comes in.
• Floor mats and the trunk, where pollen from shoes, bags and pets collects.

Spring and early summer in southern Ontario bring heavy tree and grass pollen, and the windows and vents bring it in. Ragweed arrives in late summer. If you suffer in the car more than at home, look at the cabin filter first.

A note of honesty, since this topic attracts big promises: cleaning reduces allergens, but we are detailers, not doctors. If your symptoms are significant, check with a healthcare provider and use a clean car as one part of the picture.

Most modern cars have a cabin air filter behind the glovebox or under the cowl. It catches pollen and dust before it reaches you. Over time it clogs, and a clogged filter can stop catching anything and can smell musty.

• Check your owner's manual for the replacement interval. Many are around once a year or about every 20,000 km, and sooner if you drive on dusty roads.
• Replacing it is usually a ten-minute job on most cars.
• If you have allergies, buy one rated for pollen and particles, sometimes sold as a high-efficiency or activated-carbon type.

Cleaning the cabin without changing the filter means the dust comes straight back out of the vents.

1. Take everything out, including mats and clutter.
2. Vacuum slowly, using a crevice tool and brush. A vacuum with a sealed system or HEPA-style filter is better, because a cheap one blows fine dust back into the air. Wear a mask.
3. Damp-wipe hard surfaces with a slightly damp microfibre. Dry dusting flicks particles into the air.
4. Clean the fabric. Lightly mist and extract seats and carpet, or use an upholstery cleaner and blot. Our car seat stain guide covers technique.
5. Clean the mats outside the car. See how to clean car floor mats.
6. Wipe vents with a soft brush and a damp swab.
7. Dry everything. Damp fabric grows mould, which is an allergen itself.

Repeat the vacuum and wipe every couple of weeks in pollen season, and every month or so the rest of the year. Leather and vinyl seats are easier on allergy sufferers than cloth, since particles sit on the surface and wipe off. See the leather seat care guide for upkeep.

Pet dander and hair are among the worst offenders. Dander is the skin flakes, and it clings to fabric long after the visible hair is gone. Our guide to removing dog hair goes through tools. Seat covers or a trunk liner for pets make cleaning easier, and you can wash them.

Moisture is the other issue. A leaking door seal, wet floor mats or a drain that does not clear create mould, and a musty smell is the warning sign. The fix is finding and drying the source, not masking the smell with an air freshener. Heavy mould is not a surface cleaning job.

A few habits help: keep windows closed in peak pollen, use recirculate mode on high-pollen days, shake out blankets and bags outside and do not leave damp items in the car.

Home cleaning reaches the surface. Professional equipment reaches deeper. Steam loosens and lifts what is trapped in fabrics, and shampoo extraction pulls dirty water out of the seats and carpet rather than leaving it behind. That is the biggest difference you will notice in a car with a lot of buildup.

Interior Restoration starts from $119 $149 and includes a deep vacuum and steam, carpet and seat shampoo extraction, a leather clean and condition, glass, trim and console, in about 2 to 4 hours. Pet hair is an add-on at +$40. See interior detailing, interior steam sanitization and pet hair removal for more.

We are mobile, and we work in driveways, office lots and condo garages. We do not make medical claims, but a properly cleaned interior is easier to live with. Request a quote through the 60-second form. If you are in the Burlington area, see our Burlington car detailing page.