5.3 mm Super Slim
Supported. The cigarette inserts into the lower, narrower inlet.
Compatibility notice
Smokesafer Does Not Currently Support 6 mm Cigarettes
The current Smokesafer Slim Dual Fit model is engineered only for 5.3 mm Super Slim and 7 mm Slim cigarettes. A 6 mm cigarette is not a supported fit and should not be forced into either inlet.
6 mmNot currently supported
Super Slim5.3 mm supported
Slim7 mm supported
Before orderingMeasure the cigarette diameter
Fit guide
Use Smokesafer only with a supported diameter
The Dual Fit inlet has two defined seating positions. It is not a universal 5.3–7 mm range.
6 mm
Not supported. Do not force a 6 mm cigarette into either inlet.
7 mm Slim
Supported. The cigarette fits in the upper, wider inlet.
Why 6 mm is excluded
The stepped inlet is molded for two specific diameters—5.3 mm and 7 mm. A 6 mm cigarette may not seat or seal correctly, which can affect stability and airflow. We do not currently recommend any Smokesafer product for 6 mm cigarettes.
5.3 mm: supported
6 mm: not supported
7 mm: supported
Sizing matrix
Confirm the cigarette diameter before ordering
Brand names alone are not reliable because variants can use different diameters. Measure the actual cigarette.
| Physical diameter | Compatibility | Recommended action | Fit position |
|---|---|---|---|
| 5.3 mm Super Slim | Supported | View the Super Slim fit guide | Lower, narrower inlet |
| 6 mm | Not supported | Do not order the current Slim Dual Fit model for this diameter | No supported seating position |
| 7 mm Slim | Supported | View the Dual Fit product guide | Upper, wider inlet |
| 7.8–8.0 mm Regular / Kingsize | Supported by a different model | View Regular / Kingsize filters | Regular / Kingsize model |
A secure fit depends on the cigarette's actual diameter. Do not assume compatibility from the words “slim” or “super slim” alone.
Supported alternatives
Only choose a Smokesafer filter if your cigarette is 5.3 mm or 7 mm
There is currently no Smokesafer purchase option for 6 mm cigarettes.
Fits 7 mm Slim + 5.3 mm Ultra Slim
Smokesafer Plus · Dual Fit
Compatible only with 5.3 mm Super Slim and 7 mm Slim cigarettes.
Check the supported fit guideFits 7 mm Slim + 5.3 mm Ultra Slim
Measure before ordering
If the cigarette measures 6 mm, neither current Slim inlet is supported. Please do not purchase based only on the brand name.
Read the complete Slim fit guideHave questions about sizing? Chat with us instantly via WhatsApp.
Common questions
6 mm compatibility questions
Does Smokesafer support 6 mm cigarettes?
No. Smokesafer does not currently offer a filter for 6 mm cigarettes.
Can I force a 6 mm cigarette into the 5.3 mm inlet?
No. Forcing an unsupported diameter may damage the cigarette or produce an unstable fit.
Will a 6 mm cigarette fit loosely in the 7 mm inlet?
It may not form the secure seal required for stable use, so 6 mm is not supported in the 7 mm inlet either.
Which Slim sizes are supported?
The current Dual Fit model supports 5.3 mm Super Slim and 7 mm Slim cigarettes only.
For adult smokers only. Smokesafer is a filtration accessory and does not make smoking safe. The safest option is not to smoke or to quit smoking.