The air at home: smoke, diffusers and scents seen by the animal

The greater vulnerability does not come from size alone, though that counts. It comes from how and where the animal breathes and from what it does with its own body through the day. Several factors add up and explain why air that is acceptable for a person may not be for the one living beside it at a different level.

• A higher breathing rate: in the same room a small animal takes in more air relative to its weight.
• Life near the floor, where dust, settled smoke and some substances heavier than air tend to concentrate.
• Self grooming in the cat: what lands on the coat is swallowed during cleaning, adding a route of exposure.
• The respiratory system of birds, extremely efficient and for that reason particularly sensitive to gases and fumes.
• The cat's metabolism, which handles some substances differently from a dog or a person.
• A small body and enclosed spaces, which make it harder to dilute a pollutant than in a room used only by adults.

Cigarette smoke does not weigh only while someone is smoking. Part of it settles on fabrics, carpets, coat and surfaces and keeps releasing substances for a long time, even when the room looks clean. For an animal that sleeps on the sofa and licks its coat, that residue becomes a continuous route of exposure, regardless of whether anyone is smoking at that moment.

Cooking smoke, that of poorly drawing fireplaces and stoves, and the fumes of some household jobs follow the same reasoning: they are fine suspensions the animal breathes more than we do. The most effective measure is not to scent the air but to change it and not to produce the smoke in the enclosed spaces where the animal lives.

Essential oil diffusers, scented sprays, candles and air fresheners are seen as harmless because they are natural or pleasant, but natural is not the same as safe. In the cat in particular some essential oils are considered problematic, and exposure can happen through breathing, through contact with the coat and then through swallowing during grooming. Caution here is not excessive: it is the reasonable choice when the amounts involved are unknown.

The most effective strategy is also the simplest: change the air often and cut sources at the root, instead of adding scents to mask smells. Masking a smell does not remove what produces it and often adds a second substance to the one already there. A few steady habits do more than any device.

1. 1

   Open the windows every day

   Regular air exchange dilutes pollutants far better than any air freshener. A few minutes several times a day is enough, taking care not to create cold draughts where the animal rests.

2. 2

   Do not smoke in the enclosed spaces where the animal lives

   Moving smoking outdoors reduces both the air breathed and the residue that settles on coat and fabrics. It is the single measure with the biggest effect.

3. 3

   Limit diffusers and sprays where the cat is

   If you want to use them, choose separate ventilated rooms the animal cannot access, and never apply essential oils directly to its coat.

4. 4

   Keep the kitchen ventilated, above all with birds

   Running the hood, opening a window and not leaving pans to overheat reduces the fumes most dangerous to sensitive animals.

5. 5

   Mind the cleaning and drying of products

   Rinse floors after using scented detergents and let them dry before the animal returns, so you reduce the residue it might lick.

6. 6

   Watch and note respiratory signals

   Coughing, sneezing, noisy or laboured breathing and watery eyes that appear indoors should be noted and reported to the vet, because they help link them to a source.

A simple log of when symptoms appear and what changed at home, a new diffuser, a deep clean, the season of lit fireplaces, turns a suspicion into useful information. It helps you act on the right source and helps the vet tell whether the problem is environmental or clinical, without inventing causes or remedies.