You can make your purchase either via our official website water.viomi.com or our Amazon store.

In order to process your order we require the following information:

SKU and quantity of the product(s) you want to order

Your shipping and billing addresses

Phone number – just in case we need to contact you quickly in regards to your order

Email address – for order confirmation and invoice issuing

Payment method –when process order payment, a credit card number, PayPal, Afterpay or Klarna account should be filled in to complete the payment.

Please note that we do not take orders over the phone or email, the order can only be placed online through our official website or our Amazon store.

To ensure that you receive the products, please ensure that your information is accurate, especially your phone number, email and collection address.

You can find the specifications on the user manual and on the website product page. If you need additional information, please contact our Support team.

The stock is sold out and we have no stock available currently. Please contact us if you want to know when will the out of stock items available.

There are numerous reasons for why your coupon cannot be applied:

(1) The coupon expired. Please check the valid date of coupon.

(2) May have been used already or has a use limit.

(3) Coupon code was entered incorrectly.

(4) Not applicable for any products in your shopping cart - Coupons can either be applied for specific categories, products or even just for a special promotion page.

(5) It’s not from an official source.

If you have a coupon that is not working and none of the reasons above match your situation, feel free to contact our Support team via dedicated channels. Please be noted that we may require some extra information and/or time to sort out your situation.

Please verify that your payment is completed successfully and the order was indeed placed. Other reasons may be a package delay or lost, extreme weather conditions or damage. Please check the tracking information on the delivery service website.

Sometimes your order will be judged as a risk order by the system. In this case, our customer service staff will contact you by email to confirm the situation before shipping. We cannot ship the goods until we get a reply from the customer. So please pay attention to your email.

In case of lost package, please contact our Support team, so we can determine the next steps. Please note we may require some extra information and/or time to sort out your situation.

 There are four reasons for order was partially shipped：

We have different warehouses around US, sometimes products cannot be sent together, and will be shipped from the corresponding warehouse separately.

The items are overweight and need to be shipped in different packages.

The item is out of production or stock for a long while, in that case we may ship the available parts to you first.

Lastly, the items are prepacked, so if you ordered several items or a combo, it'll be shipped in different packages.

Usually in this case, we will send email to you.

Please refer to our Shipping Policy for further information.

We can cancel the order for you as long as it's not shipped out yet.

Usually this process takes 24 hours. Also if you contact us during that time but the package is already shipped, you can return it for a full refund.

Please read our Refund policy for further information.

Once your order is shipped, you will receive an email from us containing the tracking information. This is also available in your "Order Details" page.

You can also check the shipping progress of your order through the Track My Order page. The page will require you to enter your order number and the email address used when placing the order.

If you didn't receive it within the estimated time (please see our Shipping estimated dates for that information), please contact our Support team for assistance.

Please contact us within 24 hours, as soon as you realize you need to change the delivery address. Once the order is shipped, we CANNOT change the address. Please contact our support team to help you.

If you choose Standard Shipping, then there's no additional cost.

Please check our Shipping Policy for the estimates.

(1) How to cancel an order before it’s shipped?

Please email to support@water.viomi.com, you will get the refund after our service team receives your request. (This may take up 1-3 days, appreciate for your patience and understanding.)

(2) How to cancel my order when the item has been shipped?

If you contact our service team within 24 hours and the item is shipped, we could offer you a free return label and you will get the refund after we receive the item back.

If you want to cancel the order after it has been generated for more than 24 hours and shipped, and you do not want to keep it, you need to bear the extra return fee and return for refund.

We currently offer shipping to the contiguous United States only. Due to logistical limitations, we are unable to deliver to the following regions:

• Alaska
• American Samoa
• Federated States of Micronesia
• Guam
• Hawaii
• Marshall Islands
• Palau
• Puerto Rico
• U.S. virgin Islands
• Armed Forces regions（APO/FPO/DPO）

We work with 2 carriers currently to make sure your order will arrive on time: United States Postal Service (USPS) and FedEx.

Note: We don't accept requests to specify a certain carrier to deliver the package.

The package will be shipped from the warehouse closest to your location in USA.

If you wish to cancel an order, please contact our customer service team.

If you contact us within 24 hours of purchase:

We can cancel the order for you at no additional cost. The cancellation may take up to 1-3 days, thank you for your patience and understanding.

If the package is already shipped, we will issue a prepaid label and return your payment AFTER we have received the package from you.

If you contact us after 24 hours of purchase:

You need to bear the return fee if the package is already shipped (depends on our system, not the order status).

The product has to be damage-free, packed in the packaging we sent to you, and with the original receipt of the purchase.

We will return your payment AFTER we have received the package from you.

There are times when we may not have the product(s) that you choose in-stock or may face some issues with our inventory and quality check. In such cases, you will be notified about it in advance, you can either choose a replacement or cancel for full refund.

After receiving your request or your packages, it may take up 1-7 business days to refund your money.

If you received a damaged / incorrect item and you want to file a claim, please email support@water.viomi.com together with your order information and the picture of the damaged / incorrect product. We will help you replace it.

The order number needs to be included in the package. You can print out the order detail page or contact us via support@water.viomi.com before the return.

The package needs to come back with the original receipt of the purchase.

The product has to be in the packaging we sent in the first place.

The product has to be damage-free (not applicable for defective products), damage on the product will void the refund.

The return address:

13611 Jurupa Ave, Fontana, CA, 92337, United States

Attn: REV-Z4815/doudou

Please refer to our Return Policy for further information of the process.

Viomi RO water filter system adopts advanced composite filter technology. The composite filter can intercept most of the harmful contaminants.

Can effectively reduce TDS, hexavalent chromium, fluoride, lead, iron, cadmium, calcium,

mercury, copper, selenium, barium, chloride, PFOS and chlorine in your tap water. Also

ETL&FCC&FDA tested. TDS removal rate is certified up to 91.9% and the heavy metal reduction

rate is certified up to 96.9%.

The RO does not make the water unhealthy in any way. Instead, the purification process may protect the body from many contaminants present in the water.

The RO system will not be suggested used for hard water. If your feed water is hard water , you may need to install prefilter and a NOT salt based softener or scale inhibitor prior to the system.

Tank reverse osmosis system holds reverse osmosis water so you have plenty to use when you need it. A traditional tank RO system makes water slowly. It takes one minute to produce two to three ounces of RO water. If you were to turn on your faucet for a glass of water at the actual membrane production rate, then you would have to wait at least 5 minutes for it to fill. Viomi tankless RO system has overcome the issue of bacteria colonizing in the bladder tank. With no storage tank to fill, Viomi tankless reverse osmosis system does not run until RO water is needed.

No. Viomi RO systems are designed for DIY installation. You can install the system in around 30 minutes. Simply refer to the instruction manual and instructional videos, or contact us by email.

This video explains how to install Viomi RO system.