If you have any question, please leave a comment or send email to [email protected].(3/3)

We've sent some stock by sea to the warehouses in US, UK, EU, Australia, and Canada (est. 35-50 days). But if you need it urgently, we can ship directly from our China facility by air.

Really hoping this can be helpful.(2/3)

You can do but it doesn't make much difference.

Any USB-A power plug can do.

At 30cm distance, facing the middle of 4Lite: 0 μg/m3

When positioned above or below the middle: 1 μg/m3

When shifted left or right: 2–6 μg/m3

This proves that correct positioning significantly improves performance—so always aim the center of 4Lite toward your face for the best results.
(2/2)

Once you receive your PCR test report, the same app allows you to purchase appropriate medications for treatment.

I consider it very convenient. Whenever my family member is not feel well, I will arrange a PCR test for them.
Specially I can avoid taking kids to the hospital, where is quite risky.

🔻Extended Panel (RMB 159 / ~$22 USD) – Includes all pathogens from the Basic Panel, plus:
🔹Group A Streptococcus
🔹Bordetella pertussis (whooping cough)

This option also provides pathogen load (viral/bacterial concentration) in addition to positive/negative results.

🔻Basic Panel (RMB 99 / ~$14 USD) – Tests for:
🔹Flu A
🔹Flu B
🔹COVID-19
🔹Human rhinovirus
🔹adenovirus
🔹Mycoplasma pneumoniae
🔹Streptococcus pneumoniae
🔹Respiratory syncytial virus (RSV)
🔹human coronaviruses (non-COVID)
🔹Human parainfluenza virus
🔹Haemophilus influenzae

After collecting the samples, you place both swabs back into the provided test tube and return it to the worker. They will then deliver it to a lab for analysis. Typically, results are available on the app within three hours.

There are two testing options for respiratory pathogens:

Within two hours, a healthcare worker will arrive at your specified address with a sampling kit, which includes:

🔻A long swab for throat sampling
🔻A short swab for nasal sampling
🔻A test tube to keep the samples

I just saw the video. The key problem is how to direct the clean air to the nose.

Yes. Please DM or email to [email protected].

Yes, we are going to produce them very soon.

There needs to be some room on its intake, but not much. you can put it on your knees with room in between.

Focus on educating people about lung tumors which you know and stop commenting on masks which you don't know."
Guess what? He deleted the video within a few hours.
A well-known doctor spreading disinformation can have a huge impact, and we need to stand up and call it out directly.

I left a comment saying:
"Please stop spreading nonsense. You’re an expert in lung tumors, but masks are in a completely different field, and it’s clear you haven’t studied them. I bet you don’t even know the national standards for masks or have ever read any of them.

Commercial companies often use this as a marketing gimmick, promoting H13 as the best without considering the impact on overall performance.(7/7)

I don’t believe H13 can provide the highest CADR in any case. H13 filters are ideal for devices like biosafety cabinets, where maximum single-filtration efficiency is required, but not for conventional air purifiers. (6/7)