Our cell phones for hazardous areas ensure the safety of your workers in all situations. We offer intrinsically safe cell phones for Zone 1 / Class I (ATEX, IECEx) and explosion proof cell phones for Zone 2 / Class II (NEC). Our cell phones are available with lone worker protection (LWP) and our range of products also includes an intrinsically safe smartphone, the Smart-Ex® 01.
We do have evidence that cellphones (or WiFi) do NOT cause an increase in brain tumors. Look at the time period over which cellphone use became common -- say, over the last twenty years. During that time, the incidence of brain tumors has remained absolutely flat. With over four billion people using cellphones (or WiFi) today, if there was any influence on the development of brain tumors, we would be seeing that by now.
In today's world, 2.45-GHz radio-frequency radiation (RFR) from industrial, scientific, medical, military and domestic applications is the main part of indoor-outdoor electromagnetic field exposure. Long-term effects of 2.45-GHz Wi-Fi radiation on male reproductive system was not known completely. Therefore, this study aimed to investigate the major cause of male infertility during short- and long-term exposure of Wi-Fi radiation.
Ok, update: Crownstarqi very kindly sent me 2 cell phone shield stickers, but I originally ordered the 6 pack of much thinner rectangular stickers that I could stick more places. I'm too electromagnetically intolerant to even own a cell phone, so I don't know what to do with these! I don't dare bother them about this, b/c they sent me the shield things all the way from China, but I was really hoping to just put more of the rectangular 6-pack stickers on my laptop, to see if more made a difference. It was a very nice gesture on their part, but I'm now concerned that they thought my initial review was of the shield-shaped stickers, when it was a review for these rectangular ones. I noticed that someone else thought they were ordering the 6-pack, and ended up getting a single shield-shaped sticker, instead. This is very confusing & I'm going to just...count my blessings & get on w/ my life. I don't trust any stickers that make the "negative ion" claim, b/c they're often radioactive. I don't realy know what to say, or what review to give, at this point, but I think Cronstarqi are very kind to have sent me something for the trouble w/ my original order, even though what they sent as a replacement was NOT what I had originally ordered. Maybe this was deliberate? I don't know. The package on the shield-shaped stickers says, "The product can only be used as health care instead of replacing the professional medical treatment." I'm so confused, but thanks anyway, to the seller, and the shield-shaped stickers are very pretty. I'd review them, but I have no cell phone & no verified purchase to back up my review. -Account holder's progeny.

Finally, if my phone is NOT in airplane mode… and I turn it off, are the RF signals still going?? I was thinking that turning the phone off is not enough.. you must have it in airplane mode (when phone is off or on) for the RF signals to stop. But #5 says “Make it a habit to either switch to flight mode or turn it off altogether when not in use.” Thanks for clarifying this; I am not a techie, so I just don’t know…
Whatever Carlo’s motives might have been, the documented fact is that he and Wheeler would eventually clash bitterly over the WTR’s findings, which Carlo presented to wireless-industry leaders on February 9, 1999. By that date, the WTR had commissioned more than 50 original studies and reviewed many more. Those studies raised “serious questions” about cell-phone safety, Carlo told a closed-door meeting of the CTIA’s board of directors, whose members included the CEOs or top officials of the industry’s 32 leading companies, including Apple, AT&T, and Motorola.7
In the low dose, in the low intensity range we are dealing with biological effects which are clearly not linear to the SAR value, they are not linear to the energy transmitted and measured and communicated by the SAR value. So for the low intensity experiments, or the so called ‘athermal’ effects, we are very suspicious whether the SAR value is valid at all.”

It is useful to be aware of new health research regarding cell phone usage and cell phone radiation. The first cell phone call was made in 1985 and that phone cost $5,000 and weighed about 9 pounds. The change in size, weight and cost of devices today has probably led to over 50% of the human race owning a mobile device, the fastest growing technology on the planet.