Qualitative fit testing is a pass/fail procedure used to determine whether a respirator properly seals to the user’s face. The test relies on your sense of taste, smell, or reaction to an irritant to detect leakage inside the respirator facepiece. Unlike quantitative testing, it does not measure the exact amount of leakage — instead, results are based on whether you can detect the test substance.
OSHA-approved qualitative fit test methods include:
This method is typically used for half-mask respirators, which cover the nose and mouth. These include filtering facepiece respirators (such as N95s) and elastomeric respirators.
Quantitative fit testing uses a specialized machine to measure the actual amount of air leakage into a respirator’s facepiece. Unlike qualitative testing, it does not rely on the wearer’s sense of taste, smell, or irritation to detect leaks.
During testing, a probe is attached to the respirator and connected to the machine by a hose. The machine then calculates the fit factor, which indicates how well the respirator seals.
OSHA-approved quantitative fit test methods include:
Quantitative fit testing can be used for any type of tight-fitting respirator, including full-face and half-mask models.
To ensure protection, you must be fit tested before using a respirator in the workplace and retested at least once every 12 months. Testing must be done with the exact make, model, style, and size of respirator you will wear on the job.
If your respirator fails the fit test, another model, size, or style must be tried until a proper fit is achieved. Employers are required to provide a reasonable selection of respirators for testing and selection.
If you wear prescription glasses, safety goggles, or earmuffs on the job, you must also wear them during the fit test to ensure they do not interfere with the respirator’s seal.
Additionally, the respirator fit should be retested whenever there is a change in your physical condition that could affect the seal, such as:
Facial hair — including beards, mustaches, or stubble — can break the seal between your face and the respirator, allowing contaminated air to leak in. Long hair should also be kept clear of the sealing area and valves to maintain full protection.
Fit testing can be conducted by your employer or a qualified third party, such as a union, apprenticeship program, or contractor association. If you have been fit tested within the past 12 months using the same respirator model, your current employer may accept that test. This is known as “fit testing portability.”
However, it is still your current employer’s responsibility to verify that all OSHA fit testing and recordkeeping requirements are met before you use a respirator for protection against hazardous exposures.
Our DOT physicals are comprehensive health examinations performed by a certified Medical Examiner to ensure you meet all requirements for commercial driving. The exam evaluates a wide range of health conditions, including:
At the conclusion of the exam, you will receive certification in accordance with Federal Motor Carrier Safety Administration (FMCSA) regulations, confirming that you are medically qualified to operate a commercial vehicle.
Get your DOT certification quickly and confidently with a full health exam from our certified Medical Examiner. We check everything from vision, hearing, and blood pressure to sleep apnea, diabetes, and mental health, ensuring you meet all FMCSA requirements. Walk away with your certification and the peace of mind that you’re medically qualified to drive.
💰 Only $70 – DOT Physical Exam
Get certified quickly and safely with our full DOT/CDL exam.
Drive with confidence knowing your health and compliance are in check.
Diamond Integrated Company is a full-service clinical laboratory and occupational health practice dedicated to providing accurate, timely, and efficient laboratory services. Using advanced technical and robotic equipment, we deliver results you can trust while helping enhance the productivity of our clients.
We specialize in both DOT and non-DOT physicals, and also offer a wide range of services including:
Our team works closely with major companies to maintain and improve their drug screening and occupational health programs, ensuring compliance and safety in the workplace.
At Diamond Integrated Company, we believe in providing comprehensive healthcare in a friendly, relaxed environment. Our medical team is committed to patient education, empowering individuals and companies to make informed decisions about health and safety.
Our Board-Certified Nurse Practitioners work in consultation with attending Physicians to deliver consistent, informed care every time, ensuring your company and your employees receive the highest quality clinical services available.
Dear Valued Customer,
At Diamond Integrated Company (DIC), we live by the philosophy: “Time Equals Money.” My name is Influence Salubi, Founder of DIC, a small minority-owned business specializing in DOT and non-DOT services, including:
We understand the importance of quality, efficiency, and reliable service. If your employees are spending valuable time waiting in lines or sitting in waiting rooms for drug testing, physicals, or other occupational health services, DIC is the partner you need. We provide high-quality, detail-oriented services at reasonable and affordable rates.
Our facility in Hyattsville, Maryland, on Corporate Drive is conveniently located for bus and metro riders, with free parking and a complimentary shuttle from New Carrollton Metro Station. The facility is well-lit, clean, and staffed by highly trained medical professionals committed to providing the best care.
We accept walk-ins and after-hours appointments to fit your schedule. Let us provide the reliable, efficient services your business deserves.
Call us today at 301-583-0130 to get started.
Diamond Integrated Company is a leading provider of laboratory and occupational health services, offering:
Our Medical Review Officer (MRO) collaborates closely with every clinician on duty to ensure accurate and reliable results. Our certified collectors guide you through every step of the process, making it simple and stress-free.
At Diamond Integrated Company, there’s no waiting—just fast, professional, and efficient service you can trust.
Our standard 5-panel urine drug test screens for:
We offer a wide range of drug testing options, including DOT and non-DOT tests, as well as random, pre-employment, reasonable suspicion, post-accident, and promotion testing. For urgent needs, we also provide instant drug testing with results in as little as 5 minutes.
Diamond Integrated Company is nationally recognized as a top-rated drug screening provider. Our urinalysis testing is the most common method in the U.S., and all results—positive or negative—are carefully reviewed by our clinicians and Medical Review Officer (MRO) to ensure accuracy.
We understand the importance of a safe and compliant workplace. That’s why our lab follows strict collection procedures to prevent tampering or adulteration of specimens, providing fast, reliable, and affordable results for your company.
For more comprehensive screening, we offer tests that include:
Our lab is designed to meet the highest standards for accuracy, reliability, and workplace safety, giving your company confidence in every test.
Diamond Integrated Company is one of the largest DNA testing providers in the nation, offering comprehensive DNA testing services for paternity and a wide range of family relationship needs. Each year, we perform over 2,500 DNA tests, providing accurate, reliable results you can trust.
Our DNA testing services include:
At Diamond Integrated Company, we prioritize accuracy, confidentiality, and fast turnaround, ensuring that every client receives the highest standard of service.
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