High efficiency particulate air filter macro close up. HEPA air filter to stop spread of microscopic pollen grains and prevent pollen allergy. Filter for healing hay fever or allergic rhinitis.

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Publicado: Categoría: Science Tipo: Vídeo Duración (sec): 14.047 sec. Model release: No

Contributor: desertsands

ID : 760195207

Título	filesize
Vídeo	3840x2160

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Palabras clave

breathing, fresh air, clean air, air, filter, airborne, allergen, allergic, allergy, honeycomb, patter, asthma, biology, botany, mobile phone, disease, flower, germ, grain, grain, hay, microscopic, particle, plant, pollen, pollination, reaction, rhinitis, season, seasonal, seed, spore, breath, dirt, dust, float, fly, slow motion, pollution, smoke, molded, cell, closeup

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