Flere bøker av Johnson Pfizer:

• Homemade Hand Sanitizer

  A Practical Guide to Make Anti-Bacterial and Anti-Viral Homemade Sanitizers

  Respiratory Therapy / Johnson Pfizer

  Innbundet

  

• DIY Homemade Face Mask And Hand Sanitizer

  Unfu*k Germs and Bacteria and Prevent Yourself and Your Family from Common Flu and other Viral Diseases.

  Respiratory Therapy / Johnson Pfizer

  Innbundet

  

• Do it Yourself Homemade Face Mask

  Quick Guide To Making Your Own Medical Face Mask At Home To Protect You and Your Family From Diseases, Viruses & Germs

  Respiratory Therapy / Johnson Pfizer

  Innbundet