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The effect of portable HEPA filter air cleaners on indoor PM2.5 concentrations and second hand tobacco smoke exposure among pregnant women in Ulaanbaatar, Mongolia: The UGAAR randomized controlled trial - ScienceDirect
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Cllr Oliver Patrick 🔶 🇬🇧 🍏 🇺🇦 on Twitter: "🔎 What do you notice about this picture? That's right, a HEPA filter. The world's richest and most powerful people are currently meeting
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Progress has been made, but mineral mining industry still has work to do on respirable crystalline silica | Commissioner for Resources Safety & Health
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Frontiers | Impact of additional HEPA filter on APAP performance and CPAP pressure level in simulated sleep apnea events
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