Adam Wong

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

AirFanta air purifiers Official website of AirFanta air purifiers.

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In here, the latest wave of COVID-19 has passed its peak at end of May. This wave is mainly caused by NB.1.8.1. This is the sixth wave as from the moment the ZERO Covid Policy is cancelled end of 2022.
Source: CDC
t.co/uAebeaKT7T

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)

Why Proper Positioning of 4Lite Matters

I created a video demonstrating the importance of aligning the middle of 4Lite directly toward your face for optimal effectiveness.

Here’s what the test results showed when the background PM2.5 level was 14 μg/m3:

🧵(1/2)

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

How is COVID-19 testing conducted in China?

In China, affordable and fast PCR testing is available in major cities. Several companies provide this service, and the process is simple—just place an order through a mobile app.
🧵

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

Understanding Harmful Substances in the Indoor Air Humans have long recognized the importance of clean drinking water. However, the significance of clean air has not yet been widely acknowledged by the general public. In reality, the air can contain a...

I will write some articles of indoor air quality and air purifiers in the coming days. and here is the first one. You are welcome to discuss.
air-fanta.com/blogs/all/un...

Yes. Please DM or email to airfanta@air-fanta.com.

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.

Today, a doctor posted a video on Chinese TikTok claiming that masks can't prevent COVID or the flu. He's well-known and respected for his expertise in tumor assessment from CT images of pulmonary nodules and is considered an authority in that field.

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)

I conducted a test on the 3Pro model, which achieved the highest CADR with E11 filters. While this may not apply to all air purifiers, for PC fan types, E11 filters are the most effective choice.(5/7)

We can't just say one filter level is better without considering these factors. The best filter level strikes a balance between filtration efficiency and the airflow rate drop due to the pressure drop from the filters. (4/7)

However, if you're making your own air purifier, filter choice becomes a key factor to achieve the highest CADR.
So, which filter is better? The answer depends on two main factors: the total surface area of the filters and the combined P-Q curve of the fans.(3/7)

Before diving deeper, it's important to understand that if the CADR (Clean Air Delivery Rate) is the same for both air purifiers, they essentially do the same job, regardless of the filter level. As a customer, this means you should focus on the CADR rather than the filter level. (2/7)

There’s a lot of debate over which filter level is best—H13 or MERV13. Commercial brands often claim H13 is superior, while CRbox suggests MERV13 is the better option. (1/7)

Update:
1️⃣3Pro is restocked in UK.
2️⃣3Pro equipped with HEPA + Carbon filters are available in US.
3️⃣mini and replacement filters are available in Australia.
All of them can be ordered on Amazon or our website air-fanta.com.

Thank you for your support.

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