7

To answer this question you would need to find the source of the information. I found the study mentioned in the article in the Toronto Star (Chen, et al. 2017); and while studying risks of dementia, Parkinson's disease and multiple sclerosis, with emphasis mine, they said: In this population-based cohort study, we assembled two population-based cohorts ...


5

VOCs are one of the most prevalent indoor air pollutants. They are released by many common materials, from foams to carpets to paints. House air circulation is not very conducive to adequate dispersion, and it is usually worse in the winter. There are known health effects from headaches to cancer. Effects experienced are usually limited to symptoms rather ...


4

There are many factors to consider. The pollution level (and risk) depends on at least the following: typical wind direction during rush hour density of trees between you and the road elevation difference between you and the road presence of a noise wall between you and the road level and type of traffic on the road This page aggregated a large number of ...


3

General rule of thumb: Reduce the amount of dirt and dust in the air you breathe. This question does currently not specify if those profiles are just handled and assembled in a bedroom. That should be fine. However, implicitly one can read that as asking for: if those profiles get drilled and sawed and machine polished, then a certain amount of dust and ...


3

I found three well conducted (randomized trial) studies on this topic. Synthesis seems to be that HEPA results to significant reduction in the particulate matter in the air but the objective effects on health remains to be shown. Study 1: HEPA filtration resulted to better air quality. In subjects exposed to traffic-related matter, use of HEPA resulted to ...


3

Those are face shields to prevent primarily droplets reaching the eyes, and are worn as being more comfortable than goggles to protect the mucous membranes of the eyes, and they don't fog up like goggles can. However, they don't protect against droplet nuclei which float in the air, and there is no regulated design. Face shields are PPE that are commonly ...


2

Leave open the window of my room all day is dangerous for me ? No. There are even more particles in a confined room that there is outside. Should I avoid walking or running along traffic queues ? Yes indeed. Forests and parcs are recommended. Trees eat up CO2 during night, so the air is a bit healthier. Does having indoor plants can benefit me ? ...


2

Some negative ion generators also produce small amounts of ozone, which is a gas that can be lethal if inhaled in concentration. I suppose if you were to find a way to accumulate enough ozone and then intentionally inhaled it you might die. There is no chance of this happening in normal use however, though you can smell a trace of ozone emanating from these ...


2

Pathologies due to mineral inhalation are a broad spectrum of diseases called pneumoconiosis. You can read about it here in Wikipedia. The type of disease is different regarding different minerals, and this reflects to the treatment approach.


2

Sites vary, but most mention a median range of between 30-40% humidity. 40-50% Humidity During extremely cold weather, your home loses humidity to the outdoors and may drop as low as 5%. By comparison, typical humidity in the Sahara Desert is about 25%! Generally, one does not want to have a home humidity any lower than 30%. Optimal comfort is ...


2

Keep in mind that surgical masks are designed primarily to protect the patient from the surgical staff, not the other way around. They prevent aerosols exhaled by the surgeons and nurses from reaching the sterile surgical field, and do very little to filter the air the staff breathes. In order to do that, you need a tight seal on the face with no gaps, and ...


2

Given the levels you're describing, I'd stay inside, but it's a close call. Pulling up a random Carbon Dioxide Safety Data Sheet, the long-term exposure limit for carbon dioxide is 5000 parts per million according to NIOSH, ACGIA, and the latest OSHA standards (OSHA 1989 permitted 10,000 ppm). The 3600 ppm your meter is reporting is below that, while the ...


2

Perhaps a good idea for separate lobbies or waiting rooms, but definitely not for operating suites or patient care areas. Plants use CO2 and release O2, which is good. They also do filter VOCs (volatile organic compounds) and other air toxins, primarily via the microorganisms living on their roots. Also good. There is a ton of research including the NASA ...


1

Not knowing about HETA air filters some general information: Small particles in air may cause cancer or other lung diseases, but preferably when inhaled in large amounts for a long time(>10 years). In regions of low small-particle-pollution you won't need any air filter, in regions with high pollution this may cause health damage. (http://www.who.int/...


1

Your question can basically be extended to all studies related to statistics. In simple terms you are generally looking for a relationship (e.g. between an increased number of deaths and air pollution levels). Of course finding such a relationship ALONE doesn't tell you anything about cause and effect. Even if you are only looking at deaths from diseases ...


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