can cigarette cause pneumonia Smoking in acute respiratory infections — Centre for Evidence-Based Medicine (CEBM), University of Oxford Pneumonia - Wikipedia

Oral nicotine doubled atherosclerosis risk, while acrolein seemed to have a dose dependent increase with risk doubling at higher levels

The unit also includes an adjustable header sign holder, allowing you to display your store name, tobacco brand messages, or retail category signage

Not as important for tobacco smoke removal, but a nice added benefit

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This creates a cross breeze that will suck fresh air in through one opening and push the smoke out of the other