CMA air testing reports usually have a red seal with the CMA logo in the upper left corner of the report. The row of small numbers under the MA logo is the number of the company's CMA certification qualification. Usually it is a red seal. If it is printed in black, it may be a copy. If it is a real report, both cases are valid. However, if the test report is needed to protect rights or for other certification purposes in formal occasions, it is best. Use originals.