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結果 : is uvb light harmful to humans
7:44

UV light kills viruses. Why isn't it everywhere?

Vox
1,333,436 回視聴 - 1 年前
0:55

What are the risks of UV-C lamps? Is UV-C Safe?

Airbotx
2,554 回視聴 - 2 年前
2:38

Ultraviolet light - How much sun exposure is safe? Ultraviolet light Effects on Health

Dr. Constantine
7,111 回視聴 - 4 年前
2:36

Are LED Grow Lights Dangerous for Humans?

California LightWorks
14,559 回視聴 - 4 年前
1:17

The dangers of UV on our health

UK Health Security Agency
27,552 回視聴 - 9 年前

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1:01

How Does Ultraviolet Light Affect Your Skin?

Science Channel
22,612 回視聴 - 7 年前
3:44

How UV Rays Damage Skin

DocUnlock
207,395 回視聴 - 6 年前
5:24

Are UV grow lights safe? Can UV grow lights cause cancer?

MIGRO
26,491 回視聴 - 5 年前

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2:13

Ask ReptiFiles: Are LED UVB Lamps Safe?

ReptiFiles
3,522 回視聴 - 2 年前
8:02

ULTRAVIOLET RAYS | How Harmful Are UV Rays? | Ultraviolet Radiation | Dr Binocs Show | Peekaboo Kidz

Peekaboo Kidz
870,830 回視聴 - 5 年前
11:38

ブルース・バグビー博士による紫外線が植物に与える影響

Apogee Instruments Inc.
71,540 回視聴 - 4 年前
6:45

Here's What Blue Light Actually Does To Your Body

Doctor Mike
1,556,861 回視聴 - 4 年前
6:30

Ultraviolet Light EXPLAINED — How it Affects our Health

The Fit Mother Project - Fitness For Busy Moms
6,003 回視聴 - 2 年前
1:30

VERIFY: UV light lamps are not safe or effective in killing the coronavirus

WUSA9
6,632 回視聴 - 5 年前
2:06

Haloclean UV ライトのレビュー - この UV 除菌剤は実際に効果があるのでしょうか?

Scamadviser
15,483 回視聴 - 5 か月前
16:12

Are LED grow lights harmful to humans?

DROPsHomestead
2,856 回視聴 - 5 年前
3:03

Testing UV disinfecting lights

KPRC 2 Click2Houston
155,583 回視聴 - 4 年前
1:55

Understanding Ultraviolet UV Radiation and its Effects

Larson Electronics
20,951 回視聴 - 5 年前
1:06

Why Ultraviolet Light is Harmful to Our Eyes

eyeTrustNetwork
10,761 回視聴 - 7 年前
7:29

How to know if a UVC device will be safe and effective

CNET
172,100 回視聴 - 4 年前