One of the most common problems in homes is that odours are not always perceived consciously. The brain and the olfactory receptors adapt within a few minutes to a persistent smell, causing us to stop noticing it even though it remains. This explains why, a house can smell overpowering without those living there being aware.
According to Diego Fernández, a chemical engineer, eliminating odours should not rely solely on adding fragrances, but on neutralising the causes that produce them. Otherwise, the smell returns as soon as the fragrance fades. Furthermore, it is worth noting that conventional air fresheners are not free from questionable chemicals.
Neutralising a smell is not the same as masking it
At this point, Fernández emphasises an important point: bad odours are usually linked to bacteria, damp or organic residues. In other words, it isn’t just a matter of a disagreeable scent; it also concerns health. If you do not address the source of the odour, any solution will be temporary.
Home remedies can be effective because they have a sound chemical basis. Vinegar, bicarbonate of soda, activated charcoal, or boric acid are useful because they react with the molecules responsible for the odour or create environments unfavourable to bacteria and mould.
Why boric acid and bicarbonate are effective
Carpets are among the elements that most readily accumulate odours. They absorb moisture, dust and organic debris where microorganisms proliferate and, over time, generate that musty smell that is so hard to remove.
Here is where Diego Fernández particularly emphasises the combination of boric acid and bicarbonate of soda in equal parts. For example, 50 g and 50 g.
Bicarbonate of soda neutralises odours and absorbs moisture, while boric acid acts against bacteria, mould and dust mites. Together they form a highly effective dry-cleaning mixture that won’t damage fabrics if used correctly.
The mixture is sprinkled over the carpet, left to act for about an hour and vacuumed carefully afterwards. The result is a fresh scent and a sense of cleanliness that can last over time.
How to prolong the effect on carpets and rugs
After using the boric acid and bicarbonate mixture, allow the carpet to air thoroughly and avoid placing it in damp areas straight away.
Vacuum regularly, ventilate the room and repeat the treatment at least with each seasonal change to help prevent odours from returning. In this way, you not only clean but keep the problem under long‑term control.
Safety and responsible use
Diego Fernández reminds us that, although these products are common, they should be used with common sense. Boric acid must not be applied in areas accessible to children or pets and it is always wise to vacuum well after use. When used correctly, they are effective and safe allies.
Textiles that smell even when they aren’t dirty
Curtains, sofas, cushions and bedding can smell unpleasant without visible stains. Daily use, ambient humidity and body contact cause them to accumulate bacteria responsible for the odour.
For these cases, a home-made air freshener based on water, alcohol and a small proportion of the essential oil you prefer is very practical. The alcohol helps to reduce the bacterial load and makes the aroma evaporate without leaving residues. Lightly sprayed, it refreshes fabrics without saturating them.
Keeping the pleasant scent over time
A home that smells good is not one that always has a fragrance in the air; it is one that does not accumulate hotspots of odour. The key is to clean fabrics with natural products and to pay attention to spaces that often go unnoticed.
You don’t need to do everything at once or turn it into a heavy routine. Simply weaving small actions into your regular cleaning will keep the atmosphere pleasant even as your sense of smell becomes accustomed.
