Airtrim Asthma is suitable for people who are sensitive to cold, for example have asthma or angina. Airtrim Asthma is the filter that recovers the most moisture and heat. Airtrim Asthma comes with two asthma filters. The filters that come with it are completely white. The pictures illustrate a different filter than the one included in the package. The asthma model is not suitable for sports activities as it can feel like breathing through a straw and not getting enough air.
The asthma model works perfectly for walks, e.g. walking the dog. If you are going to train or perform other more demanding activities, we instead recommend Airtrim Sport or Airtrim Race, which are supplied with filters that let more air through, which makes it easier for pulse-raising activities.
The mask is only available in one size and fits most people. How tightly it is attached is easily adjusted with the strap that goes around the neck. All filters available fit the mask and it is only the color that distinguishes the masks.