--- product_id: 397083559 title: "Formaldehyde (HCHO) DIY Test kit - Know What's in The That Surrounds You (Pack of 3)" brand: "air ae steward" price: "¥8623" currency: JPY in_stock: true reviews_count: 5 category: "Air Ae Steward" url: https://www.desertcart.jp/products/397083559-formaldehyde-hcho-diy-test-kit-know-whats-in-the-that store_origin: JP region: Japan --- # Covers up to 270 sq ft per kit Colorimetric visual alarm 30-50 min quick results Formaldehyde (HCHO) DIY Test kit - Know What's in The That Surrounds You (Pack of 3) **Brand:** air ae steward **Price:** ¥8623 **Availability:** ✅ In Stock ## Summary > 🏠 Breathe Easy, Live Smart — Know Your Air, Own Your Space! ## Quick Answers - **What is this?** Formaldehyde (HCHO) DIY Test kit - Know What's in The That Surrounds You (Pack of 3) by air ae steward - **How much does it cost?** ¥8623 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/397083559-formaldehyde-hcho-diy-test-kit-know-whats-in-the-that) ## Best For - air ae steward enthusiasts ## Why This Product - Trusted air ae steward brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **User-Friendly Design:** Six simple steps with clear English manual—perfect for busy professionals. - • **Health-First Approach:** Identify invisible toxins to protect your family’s wellbeing and peace of mind. - • **Room-Specific Precision:** Test each living space individually for targeted air quality insights. - • **Rapid & Reliable Detection:** Get trustworthy formaldehyde readings in under an hour—no lab needed. - • **Trusted Support & Longevity:** 2-year shelf life plus 24/7 expert assistance ensures confidence every test. ## Overview This DIY Formaldehyde (HCHO) Test Kit offers a fast, economical, and easy-to-use solution to detect harmful formaldehyde gas in indoor environments up to 270 sq ft. With a simple colorimetric visual alarm and a clear six-step process, it delivers reliable results within 30-50 minutes. Ideal for home or office use, the kit empowers users to monitor air quality proactively, helping safeguard health against long-term exposure risks. Each pack includes three tests, a detailed manual, and benefits from a 2-year shelf life and responsive customer support. ## Description The Air Formaldehyde Test Kit was developed to determine the concentration of Formaldehyde (HCHO) in indoor air. Please keep away from children and if there is any contact with skin or eyes immediately rinse the area with water. We use latest chemical solution based on international standards in regards to Formaldehyde problem around the world. Formaldehyde (HCHO) - is a colorless, flammable gas at room temperature and has a strong odor. Exposure to formaldehyde may cause adverse health effects.Product Packaging: Absorption Box - white cylindrical container Absorbent - brown bottle Color Developer - white bottle Colorimetric Card User’s Manual Review: Easy to use kit! Revealed we had no formaldehyde but did the job. Review: I have not submitted a review on desertcart before but I am so impressed I really need to do that now. I ordered two of these kits and they arrived on time, in good shape. There was a date of 03/19/2018 printed on the plastic overwrap on each package. I assumed, like many products, that this was an expiration date. Because formaldehyde is a very serious issue, and a known carcinogen, I was dismayed that I received what I thought was expired products. I submitted a question to the seller via desertcart and was satisfied and impressed with their immediate response. Even though the package does have a statement about “Production date: see package” this is ambiguous particularly for something this important. The seller confirmed that the date stamped on the package is the production date, not the expiration date. So I am able to use the kits with confidence regarding the product viability. In addition, the most critical color range is on the lower end particularly around the “safe” threshold of 0.10. The colors on the low end are very light and similar. So, I exchanged additional emails with the seller regarding possible improvements such as changes to the sample container and color card. They were very open to feedback and as before, we exchanged a series of emails about possible improvements. I actually trim the excess white off the color card and lay the color strip across the top of the powder box to take the reading. This enables me to get the color card as close to the liquid without touching the liquid inside the powder box. I’ve included an image of two samples side-by-side along with the color swatches. I found it difficult to discern the score for the sample on the left and sent an email to the seller. It’s not in the yellow/brown range (0.01), and it’s definitely not blue (0.15). To me it looks like it’s in the green region but I could not distinguish between the 0.08 and the 0.10 score (safe threshold). I asked the seller if they would tell me what they thought and they quickly replied saying they consider this to be a 0.09. This makes sense to me and I agree. This seller met and went above and beyond my expectations. It was very clear that the seller has thought through a variety of options regarding the ease of use of this product for a person at home, as well as the ability of someone to properly use and interpret the results. They are very open to improvements and are currently investigating improvements in the color card for future versions of the test kit. I originally gave this 3 stars due to the ambiguity when scoring the sample at low levels. But, I have been repeatedly impressed with this seller’s attention to detail, their quick responsiveness, and thoughtful replies in our somewhat lengthy email exchanges. While I do think photographic examples of control samples would help reduce ambiguity, the seller explained the difficulties and cost associated with this approach. Based on my experience with the kit and the seller, and given the low cost, I do think this is a 5 star product and provider who has a genuine interest in the quality, safety, ease of use, and ongoing improvement of this product. ## Features - SIMPLE, FAST and ECONOMIC way to determine whether Formaldehyde Gas (HCHO) is present in your home environment. This test kit is suitable for all living areas up to 270 square ft. (25 square meters). One kit per one room/item, if you would like to inspect your entire house we recommend buying the same amount as the room quantity. Better air quality – healthier family. - NOTE: The longer the test area kept closed before measuring formaldehyde the more reliable results you get. Example: if you close the room for 8 hours and turn off all ventilation, air purifiers or anything that can affect the air than after measuring Formaldehyde you will get results of what the concentration is for such conditions. (Possible scenario: what is the formaldehyde concentration during 8 hours sleep with all windows closed). - Six easy and well-explained steps with English manual will give you trustworthy results in 30-50 minutes time. Please keep the air temperature and humidity unchanged as much as possible during the test. - This test will provide only visual results of what is the concentration of Formaldehyde in the room and should only be used for home or office environment and not compared to industrial equipment. If Formaldehyde Gas is present in your environment we recommend purchasing an air purifier or any other Formaldehyde removal technology to protect yourself and family. Since long-term exposure to Formaldehyde can cause serious health problems. - Please store the test kit prior use in a dry and dark place. The expiration time is 2 years from the production date. Please see the packaging. If there are any questions or you need any assistance please contact us via email, or ask questions here. Our support team is here for you 24/7. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07DC9QZW7 | | ASIN | B07DC9QZW7 | | Alarm | Visual | | Best Sellers Rank | #63,986 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #203 in Safety Sensors & Detectors | | Brand | Air Ae Steward | | Built-In Media | Manual | | Customer Reviews | 3.9 3.9 out of 5 stars (436) | | Customer reviews | 3.9 3.9 out of 5 stars (436) | | Date First Available | 11 June 2019 | | Enclosure Material | Other | | Is Discontinued By Manufacturer | No | | Item Dimensions D x W x H | 10.2D x 7.6W x 7.6H centimeters | | Item Weight | 0.09 Kilograms | | Manufacturer | Air Ae Steward | | Manufacturer | Air Ae Steward | | Power Source | Battery Powered | | Product Dimensions | 10.16 x 7.62 x 7.62 cm; 91 g | | Product Style | Compact | | UPC | 648865492532 | | Unit Count | 3 Count | ## Product Details - **Brand:** Air Ae Steward - **Item weight:** 0.09 Kilograms - **Power source:** Battery Powered - **Product dimensions:** 10.2D x 7.6W x 7.6H centimeters - **Style:** Compact ## Images ![Formaldehyde (HCHO) DIY Test kit - Know What's in The That Surrounds You (Pack of 3) - Image 1](https://m.media-amazon.com/images/I/71VWD6nOA7L.jpg) ![Formaldehyde (HCHO) DIY Test kit - Know What's in The That Surrounds You (Pack of 3) - Image 2](https://m.media-amazon.com/images/I/71ys9dAY8zL.jpg) ![Formaldehyde (HCHO) DIY Test kit - Know What's in The That Surrounds You (Pack of 3) - Image 3](https://m.media-amazon.com/images/I/81dP1BZYjyL.jpg) ![Formaldehyde (HCHO) DIY Test kit - Know What's in The That Surrounds You (Pack of 3) - Image 4](https://m.media-amazon.com/images/I/713iy1+w-NL.jpg) ![Formaldehyde (HCHO) DIY Test kit - Know What's in The That Surrounds You (Pack of 3) - Image 5](https://m.media-amazon.com/images/I/81wW1Jf8CzL.jpg) ## Available Options This product comes in different **Item Package Quantity** options. ## Questions & Answers **Q: I recently ordered two of these. The kits arrived with a date 03/19/2018 on the box. Is this the expiration date or the production date?** A: The date on the box is the production date, so the kit is valid for 2 years from the date on the packaging. Thank you very much for asking this question. **Q: Some of the mixed liquid got on a porous counter. Should I be throwing away my porous counter now? Not sure what chemical is used for this test kit.** A: No, there is very very little chemical (0.04%) and 99.96% is water. Simply wipe it with wet soap or atibacterial towel and wash your hands afterwards. **Q: I want to sell my 2006 fema converted travel trailer. it's below freezing in the inside, will this test still work?** A: We have not tested it at such low temperatures. More inclined towards - no. Since one of the test tubes is 98% water, it would freeze during the testing time. **Q: How sensitive is this product to other volatile organics besides formaldehyde? Could a positive reading been due to the presence of another compound?** A: I believe the test specifically identifies Formaldehyde. I purchased two tests, one I put in my bedroom, which had a reading of 0.03, and one I placed in my living room which had a reading of 0.09. The one in the living room was higher because I just purchased a new couch which uses formaldehyde to preserve the wood so the reading in the living room was higher because of that. I believe both tests were accurate in reading formaldehyde, as I have not had any symptoms of formaldehyde exposure. Hope this helps. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by E***L on 2 March 2021* Easy to use kit! Revealed we had no formaldehyde but did the job. ### ⭐⭐⭐⭐⭐ Review *by F***L on 13 July 2018* I have not submitted a review on Amazon before but I am so impressed I really need to do that now. I ordered two of these kits and they arrived on time, in good shape. There was a date of 03/19/2018 printed on the plastic overwrap on each package. I assumed, like many products, that this was an expiration date. Because formaldehyde is a very serious issue, and a known carcinogen, I was dismayed that I received what I thought was expired products. I submitted a question to the seller via Amazon and was satisfied and impressed with their immediate response. Even though the package does have a statement about “Production date: see package” this is ambiguous particularly for something this important. The seller confirmed that the date stamped on the package is the production date, not the expiration date. So I am able to use the kits with confidence regarding the product viability. In addition, the most critical color range is on the lower end particularly around the “safe” threshold of 0.10. The colors on the low end are very light and similar. So, I exchanged additional emails with the seller regarding possible improvements such as changes to the sample container and color card. They were very open to feedback and as before, we exchanged a series of emails about possible improvements. I actually trim the excess white off the color card and lay the color strip across the top of the powder box to take the reading. This enables me to get the color card as close to the liquid without touching the liquid inside the powder box. I’ve included an image of two samples side-by-side along with the color swatches. I found it difficult to discern the score for the sample on the left and sent an email to the seller. It’s not in the yellow/brown range (0.01), and it’s definitely not blue (0.15). To me it looks like it’s in the green region but I could not distinguish between the 0.08 and the 0.10 score (safe threshold). I asked the seller if they would tell me what they thought and they quickly replied saying they consider this to be a 0.09. This makes sense to me and I agree. This seller met and went above and beyond my expectations. It was very clear that the seller has thought through a variety of options regarding the ease of use of this product for a person at home, as well as the ability of someone to properly use and interpret the results. They are very open to improvements and are currently investigating improvements in the color card for future versions of the test kit. I originally gave this 3 stars due to the ambiguity when scoring the sample at low levels. But, I have been repeatedly impressed with this seller’s attention to detail, their quick responsiveness, and thoughtful replies in our somewhat lengthy email exchanges. While I do think photographic examples of control samples would help reduce ambiguity, the seller explained the difficulties and cost associated with this approach. Based on my experience with the kit and the seller, and given the low cost, I do think this is a 5 star product and provider who has a genuine interest in the quality, safety, ease of use, and ongoing improvement of this product. ### ⭐⭐⭐⭐ Review *by A***Y on 29 October 2018* Easy to use and read results. ## Frequently Bought Together - Air Formaldehyde (HCHO) DIY Test kit - Know What's in The Air That Surrounds You (Pack of 3) - Mold Armor Do It Yourself Mold Test Kit, Test Surface Mold, Air Quality, and HVAC, Safe and Easy to Use, DIY at Home Mold Kit, Effective Both Indoors and Outdoors --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/397083559-formaldehyde-hcho-diy-test-kit-know-whats-in-the-that](https://www.desertcart.jp/products/397083559-formaldehyde-hcho-diy-test-kit-know-whats-in-the-that) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-09*