I cannot dowlload aps from google store because Bauhn is not listed among manufacturers

There are a few things you can try if you're having trouble finding a replacement UV bulb for your device online. One option is to check the manufacturer's website to see if they sell replacement bulbs directly. Many companies will also list authorized resellers on their website, so you may be able to find a replacement bulb from a trusted third-party seller.
Another option is to try searching for the bulb using the model number of your device. This will help ensure that you're getting a replacement bulb that is specifically designed to work with your device.
You can also try searching for the bulb using keywords related to the device, such as "UV water purifier bulb" or "UV air purifier bulb."
If you still can't find the right replacement bulb, you may want to consider contacting the manufacturer directly to inquire about replacement options. They may be able to provide you with the information you need or point you in the direction of a trusted reseller.
If online search not working you can try a local store that sell electronic part, Home improvement stores that carry a variety of lighting options may be able to help you find the UV bulb you need.
Please do let me know the model number or application the UV light is used for, so that i could provide specific recommendations.

I believe the beep when you initially plug it in is normal. I don't think this model requires replacement filters and if not, the beep is not related to a sign the filter needs replacement.

I also think that the buttons on the side reflect two different speeds at which the device may be set. I am unable to find a manual for this model. You may try to contact the manufacturer: https://the3q.com/pages/Contact-Us.html

reload windows and reboot.(scrc off)
you posted a air purifier to computer repair help forum, why? .
the unit needs to be cleaned first. the manual covers that in all purifiers.
the blue light means ? quality of air, but if it is dirty (it self,) then this sensor device it lies to you, so it and the main are dirty. page 10 covers sensor.

cleaning it is an endless task, wash wear repeat. (pun) but real.


page 10 to 12 is clear, see the vacuum used? every 2 weeks it states.
free:

https://www.manualslib.com/manual/922271/Coway-Ap-1512hh.html?page=2#manual


i will try to move this post to HVAC systems. it is not a computer, it is for Air conditioning , really.

listed under air purifier,send to manufacturer

products.sanyodenki.com/en/contents/hp0138/list.php?CNo=138

http://www.google.com/aclk?sa=l&ai=CUusyCNcLTYDGC8XQggfX65icCsz5-cQBlKfCwxTp6dW7AggAEAMguuCZAygEUJGCluoEYMmGgIDgJKAB5tGx_wPIAQGqBBdP0PqlA3XRR_H0shPff0oXLpi3wVDsSg&sig=AGiWqtzneIqw0mE6T_KOAG3PMBFx4he9RA&adurl=http://www.air-purifiers-america.com/iqair.asp%3Fcampid%3DExBrands%26adid%3DHealthpro%26utm_source%3Dadwords%26utm_medium%3Dcpc%26ovcrn%3DIQAir%2520HealthPro%2520plus%2520air%2520purifier%26ovtac%3DPPC%26ovchn%3DGGL%26ovcpn%3DExact
Try this link.

You might want to read up on some of this:
http://www.consumeraffairs.com/retail/sharper_image.html

If you are inquiring about product warranties on former Shaper Image products, purchased prior to October 2009, we unfortunately cannot help you. On February 19, 2008, The Sharper Image Corporated (“TSIC”) operating under previous ownership and management, filed for bankruptcy in the United States Bankruptcy Court for the District of Delaware. Since that filing, a new group of investors acquired certain assets of TSIC including the brand name and the SharperImage.com website. We understand your frustrations and recommend visiting http://www.kccllc.net/sharperimage for more information, or call 1-877-312-7060. For orders placed through ShaperImage.com after October 2009 please refer to the manufacturer instructions on the warranty card provided with your purchased product.
Retail Store Purchases
Unfortunately, if you have questions about a Sharper Image product that was purchased from a retail store, we cannot help you. SharperImage.com can only assist with purchases made through the SharperImage.com website. For questions, or possible returns you have, please go back to the store where you made the purchase. For a list of retail stores carrying Sharper Image products, please click here. You will need to contact the individual retail stores to find out the specific products they carry.
For additional information regarding retail store purchases, please call 1-877-312-7060.
Replacement Parts
If you are inquiring about replacement parts for former Sharper Image products, purchased prior to October 2009, we unfortunately cannot help you. SharperImage.com is a new business venture that started in October 2009 and has no affiliation to The Sharper Image Corporated (“TSIC”) that filed for bankruptcy in 2008. Information regarding the TSIC bankruptcy case can be found at http://www.kccllc.net/sharperimage. If you have a warranty from the former Sharper Image, please find more information here, or call 1-877-312-7060.
SharperImage.com does not provide replacement part service at this time. We are not the product manufacturer and therefore do not have access to replacement parts. However, if your product is not working properly, or arrived defective, you can request a return within 60 days of purchasing by e-mailing our customer service department at [email protected]. After the 60 days expires, you must refer to the manufacturer instructions on the warranty card.

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My ionair cleaner doesn't clean the air what so ever. All four filters are perfectly clean after running for over two months. All of them are properly inserted and seated as specified. No filter warnings turn on and the unit works in all other ways. There is an ongoing fire in the hills nearby and our house if full of hazy smoke.

hold in the power button for approx 5 seconds