Choose allergen reducer devices when the question fits its direct job: it reduce exposure to a defined allergen through filtration, cleaning, containment, humidity control, washing, or another device-specific pathway; anti-dust mite devices instead target dust-mite allergen reservoirs using mattress and pillow encasements, humidity control, hot washing, high-efficiency vacuum containment, or other defined methods rather than directly treating asthma or allergy.
The word instead makes this a use-case decision, not a vote for whichever option has more capabilities. A situation favors allergen reducer devices when the required job is to reduce exposure to a defined allergen through filtration. A situation favors anti-dust mite devices when the required job is to target dust-mite allergen reservoirs using mattress and pillow encasements.