Central Sterilization Solutions


A Brief Description of The Course

Central Sterilization Solutions first started teaching in 2011. From years of experience in the field, CSS instructors recognized a huge opportunity for a better Sterile Processing education course. With rising costs and lack of proper training in the industry, Central Sterilization Solutions decided to design a course that is cost-effective and has extreme attention to detail.

Originating in the heart of Southern California, CSS hosts two In-Person classrooms located in Whittier and Riverside. Live Stream Classes are available to anyone for remote learning.  Online Courses are available for students that need a more flexible schedule or accelerated learning.


Depending on the option you choose, it will take approximately 20 to 40 hours a week to complete course material over the five months you are with us.

Once you receive your course material, you will be working and studying to complete the requirements for your certification.

These requirements will consist of completing your reading, homework, and tests while coming into class one day a week (In-Person). Each week a lecture will be held discussing two new chapters by the instructor (In-Person or Live Stream Classes). The time needed to keep up with this schedule will require that you dedicate a minimum of 25 hours each week to prepare for the exam.

You will also be required to volunteer at one of the partner hospitals and complete the 400-hour internship of hands-on training. This training will help you pass the national exam as well as have you ready to apply for a position as a Sterile Processing Technician.

Online students have the ability to choose their schedules. Once enrolled, students will have instant access to our enriching course. Textbooks will be shipped (textbooks included with tuition) by our team. The online course features a step-by-step guide simulating our classroom course. Students will still need to complete the mandatory 400-hour internship of hands-on training for the national exam.

Meet the Team:

Harry Mullen


Harry joined the Navy in 1984 and served as a Hospital Corpsman “Medic” in hospitals as well as onboard a Fast Frigate ship. He began his career as a sterilization technician in April 1988. 

After 20 years as a technician with Kaiser Permanente, Harry received his first certification and was promoted to a supervisor position at the Kaiser Los Angeles Medical Center. 

After two years, he transferred to the Kaiser Permanente Downey Medical Center to take over as the Department Administrator. He retired from Kaiser after 23 years at the end of 2011. 

The total amount of certified members as of 2020 is 33,756.  There are a total of 4 certifications available through HSPA formerly known as IAHCSMM. Harry Mullen 1 of 226 members to hold all 4 certifications. 

Harry joined the California Central Service Association as a regional director for the LA, Ventura, and Santa Barbara areas. He took over as President of CCSA in 2017 & 2018. 

In 2011, Harry started Central Sterilization Solutions with the idea of changing the culture of Sterile Processing one student at a time. CSS upon opening had students passing the CRCST exam at a rate of 65% and within a few years was able to raise that to an average of 90-95%.

Harry Mullen is known in the sterile processing industry as one of the foremost experts in this field and is often invited to speak at educational events throughout the country.

Pernel Husband, Course Instructor

Pernell Husband

Pernell Husband: He is Central Sterilization Solution’s lead consultant.  

As a United States Navy-trained Surgical Technician, Pernell is no stranger to the dynamic world of surgery and surgical instrumentation.  He has practiced his craft in a variety of scenarios.  Whether it be at sea, in the field with Marines, in a conflict zone, or at the Navy’s flagship medical facility, Naval Hospital San Diego.

Pernell Husband is currently a subject matter expert consultant, specializing in the intersection between surgery and sterile processing.  Pernell’s area of focus is to work with clients, to achieve synergies that unleash a confident and well-trained workforce. Effective communication, enhanced productivity and regulatory compliance are areas of focus.

Pernell received his Central Service Technical Training from Purdue University on May 5th, 2002.  He was certified by the International Association of Healthcare Central Service Materials Management (CRCST) on March 8th, 2012

Catherine Mullen Admissions Director

Catherine Florentino

Catherine Florentino: Admissions Director

With over 15 years in customer service & admissions, Catherine excels at keeping the success of our students the top priority.

As Admissions Director, Catherine provides guidance and a clearly defined trajectory for all new, existing, and past students. As a lead coordinator for scheduling and long-term goals, her position keeps CSS and students on track for success. Education, Hands-on Training, and Career Guidance are the three focuses Catherine is constantly working toward for student success.

Catherine’s core job responsibility is the glue that keeps our business operating. As the direct point of contact for CSS students and partners, she represents our brand and demonstrates Central Sterilizations Solutions’ core values.

Max Izzo Business Development Manager

Maxwell Izzo

Max Izzo: Business Development Manager

With over 10 years of customer/business sales, logistics, business development, and team-building experience, Max has a strong passion to solve problems, improve processes and provide results.

“As the CSS BDM my role is simple. Improve everyday processes to increase the success of our primary customers, our students, while continuing to network and grow our industry relationships. In Sterile Processing, people propel us toward the common goal of keeping patients healthy and safe. People keep this industry strong, and people are what matter most.”

With an ever-evolving industry, the goalpost is constantly shifting and the barrier to entry is getting more difficult. Central Sterilizations Solutions’ mission is clear, CSS must provide our students and partners with consistent results.

The School

Our school first started teaching the Medical Instrument Sterilization Course at the University of Phoenix. Today we are teaching classes at Orange Terrace Community Center in Riverside, CA and the Whiiter Community Center in Whittier, Ca.Live Stream Classes available for remote learning. Online course options are available to everyone. If you need an experienced sterilization technician make sure to contact us!

Central Sterilization Solutions Circle Logo

Our Mission

Central Sterilization Solutions (CSS) was created for professionals at all levels of their career. Providing one of a kind education experience to get people into the medical field fast. Our success is based on our students, that’s why we put them first before everything else. CSS will be there from curiosity to job placement.


With over 30 years of in the field experience, CSS was developed by professionals for professionals. From technicians, leads, managers, and educators. CSS knows what the industry is looking for. For this reason, our program is so unique compared to the rest.


With other schools and courses raising rates, CSS has always had a simple mission. “Keep our students out of debt, while they pursue their passion therefor we offer the financing option to make easy monthly payments or receive a discount for paying off their education.


We understand that in this competitive job market, it’s important to be ready for the job you have been waiting for is finally available. Thus our program is designed with be fast and to work with your schedule. With in-class or online course available.


Thank you for considering Central Sterilization Solutions as your preferred certification provider.

Find Out What We Can Do For You