Air quality

What is indoor air quality, and how can you improve it?

Indoor air quality is the level of dust, pollen, humidity, carbon dioxide and chemicals in the air we breathe at home. Regular airing, reducing the sources of pollutants and filtering the dust from outside improve air quality.

Published: 17 October 2026 · 2 min read

What is indoor air quality, and how can you improve it?

Short answer

We spend most of our time indoors. Indoor air is affected both by pollutants formed inside and by those coming from outside.

What forms indoors

Cooking steam and fumes
Cleaning products and fragrances
Humidity and mould
Carbon dioxide building up in crowded rooms

What comes in from outside

Traffic and construction dust
Pollen and mould spores
Stove and chimney smoke

To improve it

Air the home every day. Brief, effective airing pushes indoor pollutants out.
Filter what comes in. Window filtercuts down the dust and pollen that pour in while you air the room.
Reduce the source. Use the cooker hood and cut down on scented products.
Balance the humidity. Too much humidity leads to mould; air that is too dry causes irritation.

Detailed article: how does a window filter affect air quality?

Odera window filter fitted to a window with hook-and-loop tape

What is a window filter?

A window filter is a thin filter fitted to windows and doors like an insect screen; it lets air through and holds back dust, pollen and tiny insects…

Layer diagram showing how the window filter filters particles

How does it work?

The Odera window filter has three layers. The nanofiber layer in the middle lets air through while dust and pollen…

Open your window, keep dust and pollen outside

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Last updated: 17 October 2026