"Hat Veil" Tutorial Against Microwave RF.

When it comes to effective shielding against microwave radio frequencies, a shielding hat veil is the simplest and easiest solution to create, as well as the most economical and elegant. 

There are several shielding fabrics on the market, but the waves that need to be shielded are:

• microwave oven waves (2.4 GHz, since the door is not microwaves tight),

• Bluetooth waves (2.4 GHz),

• Wi-Fi waves (2.4 GHz, 5 GHz +),

• S.M.A.R.T. electricity meters. (Surveillance, Monitoring, Analysis, Reporting Technology at 900-928 MHz, 700 MHz-2.6 GHz, 3-490 kHz in Quebec),

• 4G LTE cell phones (700 MHz, 850 MHz, 1700/2100 MHz, 1900 MHz, 2600 MHz),

• 5G (600 MHz, 1700/2100 MHz, 3500 MHz) and 5G millimeter wave (28 GHz, 39 GHz). and others...

The specifications of the fabric I use are as follows:

Attenuated or blocked frequency range: 3 MHz to 38 GHz

Attenuation: 55-65 dB

Some frequencies from smart meters are not blocked, but it's not certain that their intensity is sufficient to cause significant problems. 5G millimeter wave could extend slightly to 39 GHz, but its range is shorter, and it's currently difficult to find a location where this frequency is present. It's not very widespread and not a major concern compared to other frequencies that cause real problems, especially because of their intensity and ubiquity.

I buy my shielding fabric from Aliexpress. Product links are temporary and may disappear without notice. I'm sharing these links as a convenience. I am not affiliated with any company and do not receive any monetary compensation for these referrals.

https://www.aliexpress.com/item/1005003158210370.html

This is silver-plated nylon.

An interesting alternative would be to use Adamantan 003 https://www.biologadanell.com/en/p/adamantan-003-ultrafine-stainless-steel-mesh which is made of stainless steel. However, although the fabric performs well, sealing may be more difficult to achieve due to the behavior of the fabric. In case you have a preference for Adamantan 003, I strongly suggest adding a strip of another heavier and more flexible fabric about 10 cm wide or more to the bottom of the veil, which could help to close the veil better and thus make it more RF microwaves-proof. You could boil very salty vinegar and soak the Adamantan in it for 2-3 minutes to make it lose its luster and make it darker, which helps with vision.

The heaviest fabric I've used is this one: https://www.aliexpress.com/item/4000192368582.html

This other fabric might be useful for closing an adamantine veil. It's lighter but still stretchy. If properly adjusted, it will work well. https://www.aliexpress.com/item/32828146502.html

Adamantan 003 comes from Germany and is not sold in Canada. However, there may be European sellers who ship to Canada. Adamantan 003 is a little more transparent but it is more reflective and wrinkles and does not spring back. Silver-plated nylon wrinkles less, springs back, is almost reflective, and performs better. Adamantan 003 is more durable and will not have the same odor over time. Metals oxidize over time and give off a slight odor of oxidized metal.

I certainly prefer wearing a shielded helmet to a shielded hat veil, but it is better to start with the veil for its price, simplicity, ease and speed of design, and easy storage. The veil has a more elegant appearance too, whereas making a helmet takes much longer, is more complicated, expensive, and bulky, but it is cooler, more stable, more comfortable to wear (if the chosen helmet fits us well), and offers better vision.

The labels aren't advertising signs, but rather a way to show consideration for those who don't understand this type of clothing. Out of respect for those who are meeting us for the first time, identifying ourselves with logos that are easy to see and understand contributes to a better experience with the public.

Video in French