Portable toilet mats: waterproofing, deodorizing and grip compared [2026]

English translation of an article originally published in Japanese on June 17, 2021. Read the Japanese original (Japanese). Product information and dates refer to the original article. Images and manufacturer videos may contain Japanese.

When choosing a mat to place around a portable toilet, consider shifting and trip hazards as well as protection against soiling. Waterproofing and water repellency work differently, and deodorizing and non-slip features vary by product. This article explains selection points and compares products from five manufacturers.

What are deodorizing and waterproof mats?

Urine may spill onto the floor when someone cannot reach the portable toilet in time. Floor-protection mats include waterproof products and products emphasizing water repellency, deodorizing or grip. To prevent seepage into the floor, check that the product is explicitly labeled waterproof.

Types of deodorizing and waterproof mats

Waterproof designs resist urine passing through to the underside. Water-repellent designs repel moisture at the surface, which is different from waterproofing. Deodorizing, non-slip features, washability and dimensions also vary.

Choosing a deodorizing and waterproof mat

Portable toilets vary in size, so deodorizing and waterproof mats also come in different sizes. Choose to match the toilet you use. Allow a little extra width on both sides. Place the rear legs of the toilet on the mat and choose enough length to extend a suitable distance in front.

Deodorizing and waterproof mats: Points to note

Even a thin mat can cause trips if its edges lift or its underside does not suit the flooring and slides. Before purchasing, check compatible flooring, whether edges may lift and the washing method.

Examples of portable toilet mats

These products were checked against official manufacturer information on October 4, 2026. Alongside Aron Kasei, Richell and Shin-Ei Techno, products from Panasonic Age-Free and Sanko are listed. Deodorizing, waterproofing, water repellency and grip are different functions, so check which you need.

Aron Kasei

Anju Kesmon Deodorizing and Waterproof Mat for Portable Toilets

Width 74 × depth 90 × thickness 0.35 cm. A machine-washable waterproof mat using the inorganic deodorizer Kesmon.

Source: Aron Kasei official page

Richell

Deodorizing and Waterproof Mat R

90 × 70 × 0.4 cm thick. Features green-tea catechin deodorizing treatment and a waterproof backing. Machine washable.

Source: Richell official page

Shin-Ei Techno

Zeo Sheeter for Portable Toilets

A deodorizing, non-slip mat made of foamed EVA containing natural zeolite. S is 50 × 70 cm, M is 60 × 80 cm and L is 85 × 90 cm. The manufacturer does not label it as a waterproof mat.

Source: Shin-Ei Techno official page

Panasonic Age-Free

Deodorizing and Waterproof Sheet, Rapid Deodorizing Type

Width 70 × depth 100 cm. Features a 100% cotton surface and waterproof polyurethane-film backing. Washable and reusable. The manufacturer describes it as a rapid-deodorizing product.

Source: Panasonic Age-Free official page

Sanko

Place-and-Grip Portable Toilet Mat, Large

A large 90 × 120 cm mat, approximately 2 mm thick. The underside grips the floor, while the surface has water-repellent treatment and catechin-based ammonia deodorizing treatment. The manufacturer labels it water-repellent and does not present it as completely waterproof. Note that it does not grip some flooring, including tatami, carpet and solid wood.

Source: Sanko official store

* Specifications and availability may change. Check the latest information from each manufacturer before purchasing.

Hiroshi Yagi

I sometimes see households using newspaper or bath towels underneath portable toilets, but these can pose a fall risk. Dedicated mats cost a little more, but are available and worth using.