Airtrim Sport Filter 2-Pack - All filters can be purchased as spare parts. The racing filters 1, 2 and 3 ensure less air resistance and less moisture and heat.
We recommend using the asthma filter for asthma, cold asthma, angina or COPD. Asthma filters are the filters that give off most of the moisture and heat and are therefore not suitable for hard training.
Eigenschaften:
Asthma filter: very dense filter that emits high humidity and heat.
Sports filter: normal filter that emits normal moisture and heat.
Racing filters 1, 2 and 3: The racing filters ensure less air resistance and less Moisture and heat.
No 3 has the lowest air resistance and warmth and is suitable for those who train very hard.