Our group company LeakLab Japan published a hands-on report on Bubble Tester from Honda Kiden Co., Ltd.
LeakLab Japan — a member of the Nimomakezu HD group along with AirMore — interviewed Honda Kiden Co., Ltd. (Sapporo, founded 1970, refrigeration & HVAC maintenance) and published the report on their column. The report touches on the following angles.
- ① Why food-additive-grade ingredients were the deciding factor
- ② How high viscosity changed leak detection in practice
- ③ Reduced consumption and waste compared with conventional sprays
- ④ Why it fits food factory and refrigeration HVAC sites
- ⑤ Expectations for future improvements (cold climate use)
If you are considering adoption, the field perspective in the original article is well worth reading.
Read the Honda Kiden Report (Japanese)* External site (leaklab-japan.com). The article is in Japanese. Opens in a new tab.
The rest of this article introduces the product featured in the report above — Bubble Tester WZA-901 — based on AirMore's product information, covering its features and main use cases.
What is Bubble Tester WZA-901?
Bubble Tester is the leak detection spray in AirMore's Wazaari series. Its high-viscosity formula holds foam strongly without dripping, making it ideal for vertical pipes and valves. The blend includes antibacterial agents that keep piping clean during inspection and anti-rust additives that protect important pipework from corrosion. Because it is formulated with food-additive-grade ingredients, it can be used safely in hygiene-sensitive environments such as refrigerated transport and food factories. It also supports inverted spraying, allowing easy application even in narrow or low-positioned locations.
Five Key Features
- High-viscosity formula for better foam retention — optimal for vertical pipe inspection
- Antibacterial agents included — sanitize while you inspect
- Anti-rust agents included — protect pipework from corrosion
- Food-additive-grade ingredients — safe for refrigerated transport and food factories
- Inverted spraying supported — easy to apply in tight, low spaces
Main Use Cases
Vertical pipe and valve inspection
The thickened formula does not drip, so foam stays in place even on vertical surfaces — letting you reliably catch fine leaks that conventional thin sprays would miss.
Food factory and refrigerated transport inspection
Because the product uses food-additive-grade ingredients, it can be used with confidence in environments that require strict hygiene control. The Honda Kiden report linked above is exactly this kind of use case.
Application in narrow and low spaces
Inverted spraying support means you can deliver the spray smoothly to cramped spots under racks or in low overhead areas — sites that are otherwise hard to reach without contorting yourself.
Product Specifications
- Model: WZA-901
- Product name: Bubble Tester
- Type: Thickened, antibacterial, anti-rust
- Volume: 360 g
- Features: Food-additive-grade ingredients, inverted spraying supported
- Applications: Air leak detection on piping, valves, and joints
Product Details & Samples
For detailed product specifications, the SDS (Safety Data Sheet), or sample requests, please refer to the product page or contact us via the form. We recommend reading the LeakLab Japan field report linked at the top of this article alongside the product information when considering adoption.