I bought 6 Xinfeng power masks for 13 yuan, can I still use them without a ventilator?

You can't use it, because the mask is worn on the person's mouth, and the big thing on the person's mouth must be clean.

Benefits of wearing a mask in all seasons: 1. The mask can not only isolate bacteria, dust and haze in the air in time, but also better protect the respiratory tract and face**; 2. The spring wind is particularly dry, which can blow a layer of skin on the face, and wearing a mask can protect the face. 3. The weather is very cold and dry in autumn, people with oral diseases can better protect their respiratory tract by wearing masks, and people with rhinitis should wear masks as little as possible; 4. The weather is cold and biting in winter, and there are many people who have colds, and there are many haze weather, so wearing a mask can isolate germs in the air in time and better protect your immune system, so it is best to wear a mask; 5. The mask to be chosen by the person who sprays paint is a 3M mask with built-in activated carbon, which can effectively isolate formaldehyde and metal elements;

If a mask has not been found to have air felling in the contact with the patient, unless it is the kind with a trunk tube, then the mask does not need to be worn, what is your own understanding? My opinion is that the function of the mask itself is the fabric of the mask, just like the water purifier, and the water does not pass through the water purifier? Does it work?

It can't be used without a valve.

The function of the breathing valve is only to reduce the resistance, and the filtration effect cannot be judged by whether there is a breathing valve or not.

Can you buy some masks that we've heard of, N95, disposable medical treatment, these can be.

p you one ,,, six sixty one!. One by one, one by one? ，

I've played, card strategy turn-based, garbage, don't need money to play games, but you can't get by without spending money in the later stage, after all, this has nothing to do with technology. [Good avatar, bad guy].

The flow is like water, even if it is the same place, the strength of the signal must be different, because the air distribution is not uniform, people who have studied physics know, coupled with the difference in the strength of the signal received by the mobile phone, all kinds of possibilities are superimposed, there is the situation above you, the normal phenomenon, the signal is stable from the base station, but it is affected by the outside world on the way to propagate, and the intensity has changed.

Before you go, remember to adopt, thank you!

Your internet speed is too slow, try to switch to Wi-Fi or 3G or 4G.

Some. It's just that there is a mosaic, and the picture quality is not good!

In a non-combat walking state, press the button to bring up the menu.

Select Items in order of them - use the cloth bag of the --- Chang'an antique dealer to get the purple gourd.

Have fun!

When he was in Chang'an, in the first house at the door of Liu Jinyuan's house, there was a woman in it, wrap the cloth and give it to him, and he would give you the purple gold gourd and learn the spirit gourd spell. Go give it a try.

After arriving in Chang'an, the doorman in Shang Shuzhuo (Lin Yueru's aunt, Liu Jinyuan's home) went down to find a room, which was the merchant's home, and you can get the gourd spell by talking to his wife, and if you don't go, it won't affect the plot!