As a general guideline, wall signs should be easily read and understood. ANSI Z35.1 has all the specifications to be used for workplace safety signages. While this standard did not mention any particular font style that should be strictly used, it did mention that the type of lettering should be in block style because “it is more easily read and requires less variance in eye efficiency for the different letters in the alphabet than most other types of letter form”.
TRADESAFE uses only fonts best suited for maximum readability. By industry standards, commonly used fonts are sans-serif like Helvetica and Verdana.