The best answer to your question would be to visit the ministry of health or kebs website for accurate info. However, here is a statement from kebs on the same:
Kenya Bureau of Standards and the Ministry of health wish to provide the following information as guidance to the public on the use of surgical masks and other facial coverings. The following masks are currently available for use:
1. Surgical masks: Covered by KS 2636: 2016 - Surgical masks Health care givers and patients in medical facilities are advised to use masks that have been certified by KEBS. Kindly note that there is limited supply of PPEs for health workers including surgical masks and N-95 respirators. The general public is encouraged to leave these masks to the healthcare workers and the patients.
2. Particle masks: Covered by KS 2409-6:2018 - Filtering face masks that protect against dust. These types of masks are designed to meet the requirements as respiratory protective devices to protect against particles.
3. Re-usable cloth coverings Cloth coverings made of woven fabrics may offer limited protection against droplets.
Note that currently, there is no Kenya Standard for these types of covering, certification for re-usable cloth coverings is currently not a mandatory requirement prior to sale. Cloth material masks should be made of double layer of fabric with a filter layer in the middle for greater protection. However, the general public must take caution that such cloth coverings do not guarantee protection against COVID-19.
for more info go to their website on: https://www.kebs.org/images/public_notice/2020/April/FINAL_-_KEBS_-_MOH_JOINT_STATEMENT_ON_FACE_MASKS_-_APPROVED.pdf