molekule test report · test report for molekule inc. report no.: 104159832grr-001c date:...

MOLEKULE TEST REPORT SCOPE OF WORK VOC Reduction by GB/T 18801 on MiniMo

REPORT NUMBER 104159832GRR-001c

ISSUE DATE 28-February-2020

PAGES 20

DOCUMENT CONTROL NUMBER Per GFT-OP-10 (6-March-2017) © 2020 INTERTEK

TEST REPORT FOR MOLEKULE INC. Report No.: 104159832GRR-001c Date: 28-February-2020 P.O.: PO-US-0410

4700 Broadmoor Ave SE, Suite 200 Kentwood, MI 49512 Telephone: +1 616 656 7401 Facsimile: +1 616 656 2022 www.intertek.com

This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification program.

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SECTION 1 CLIENT INFORMATION Attention: David Sanabria Molekule Inc. 1301 Folsom St. San Francisco, CA 94103 Phone: +1 (954) 579-3495 Email: [email protected]

Taylor Gebben Jesse Ondersma, Ph.D. Project Engineer Project Reviewer

Jesse Ondersma, Ph.D.


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SECTION 2 SUMMARY Date Received: 26-November-2019 and 09-December-2019 Dates Tested: 18-December-2019 to 27-December-2019

DESCRIPTION OF SAMPLES Part Name: MiniMo Model Number: MN14-SHA190924-000181 Materials Submitted: One (1) Filtration Unit and two (2) filters Condition of Samples: Not Specified Shipping Condition: Good Condition

WORK REQUESTED/APPLICABLE DOCUMENTS

VOC Reduction Testing: ISO 16000-3, ISO 16000-6 Referencing GB/T 18801 Intertek Quote: Qu-01025787-3

TEST SUMMARY The purpose of this testing is to determine the efficacy of the Molekule INC. MiniMo to remove challenge VOCs. The air purifier was challenged with three VOCs representative of what is found in homes: formaldehyde, toluene, and D-limonene. The three challenge chemicals were tested simultaneously. A separate test was performed with formaldehyde as the only challenge chemical. SAMPLE DISPOSITION At the completion of testing, samples were returned to Molekule Inc


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SECTION 3 ISO 16000-3, ISO 16000-6 REFERENCING GB/T 18801 Date Received: 26-November-2019 and 09-December-2019 Dates Tested: 18-December-2019 to 27-December-2019

DESCRIPTION OF SAMPLES: Part Name: MiniMo Model Number: MN14-SHA190924-000181 Materials Submitted: One (1) Filtration Unit and two (2) filters Condition of Samples: Not Specified Shipping Condition: Good Condition

TEST PROCEDURE: VOC removal testing was performed referencing GB/T 18801 (September 2015): Air Cleaner Annex C (Normative) Test Method for Clean Air Deliver Rate of Gaseous Pollutants. The unit was placed in the center of a chamber, which was sealed. An additional enclosure fan was operated to ensure air mixing within the chamber, the fan was turned off after 10 min of mixing. The challenge chemicals were injected and allowed to circulate for 30 minutes during which an air sample was taken, prior to device activation. The system was then turned on using the highest fan speed beginning the test timing. VOC samples were collected every five minutes, after starting the system, for one hour. Sampling continued to be collected every hour for a total of eight hours. Samples analyzed for toluene and d-limonene were collected on multi-sorbent tubes containing Tenax TA® at a collection rate of 200 cc/min. These VOC samples were analyzed by thermal desorption-gas chromatography/mass-spectroscopy, TD-GC/MS, referencing ISO 16000-6. Samples analyzed for formaldehyde were collected on cartridges treated with 2,4-di-nitrophenylhydrazine (DNPH), at a collection rate of 500 cc/min, and were analyzed using high performance liquid chromatography, HPLC, referencing ISO 16000-3. Individual VOC concentrations were calculated using calibration curves based on pure standards. An external PID was placed into the test chamber next to the unit to measure the decay in real time. The PID collection was initiated prior to the challenge chemical injection and continued until the end of the eight-hour reduction study. TEST NOTES OR DEVIATIONS: Testing performed without deviation unless noted below.


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TEST PARAMETERS:

Table 1: Chamber Conditions During Test Period

PARAMETER SYMBOL VALUE UNITS Chamber Volume V 30.0 m3 Testing Duration t 8 h

Form

alde

hyde

Average Temperature (Range) T 25.1 (24.3-25.3) °C

Average Humidity (Range) RH 48.0 (47.5-50.2) % RH

Com

bo Average Temperature

(Range) T 25.0 (24.7-25.2) °C

Average Humidity (Range) RH 48.8 (48.5-50.6) % RH

ISO16000 TEST RESULTS:

Table 2: Chamber concentration throughout test for formaldehyde. Test was performed with formaldehyde as the only challenge chemical.

Time (min) Concentration (μg/m3) Blank < 12.9*

0 1057 5 990

10 918 15 854 20 829 25 802 30 782 35 767 40 747 45 726 50 712 55 704 60 703

120 595 180 550 240 525 300 501 360 484 420 451 480 431

*Method detection limits based on calibration curves of pure compounds.


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Table 3: Chamber concentration throughout test. Test was performed with three challenge chemicals tested concurrently.

Time (min) Concentration (μg/m3)

Formaldehyde Toluene D-Limonene Blank 1 < 17.5* 6.7 < 5.0* Blank 2 - < 5.0* < 5.0*

0_1 1071 1938 1919 0_2 - 1905 1882 5_1 961 1723 1738 5_2 - 1654 1683

10_1 922 1500 1483 10_2 - 1441 1452 15_1 870 1323 1338 15_2 - 1272 1278 20_1 824 1171 1157 20_2 - 1103 1085 25_1 812 983 984 25_2 - 998 995 30_1 789 892 833 30_2 - 888 885 35_1 775 807 806 35_2 - 782 778 40_1 755 717 704 40_2 - 719 716 45_1 733 628 620 45_2 - 638 634 50_1 712 558 547 50_2 - 568 550 55_1 709 512 492 55_2 - 494 475 60_1 681 443 415 60_2 - 431 407 120 585 137 86.0 180 554 57.6 30.1 240 526 29.9 10.2 300 500 22.3 < 8.3* 360 464 16.2 < 8.3* 420 444 15.2 < 8.3* 480 < 17.5* 6.7 < 5.0*


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*Method detection limits based on calibration curves of pure compounds.

Figure 1: Overlay of chamber concentrations of challenge chemicals

Figure 2: Overlay of removal rate for challenge chemicals

0

250

500

750

1000

1250

1500

1750

2000

2250

0 50 100 150 200 250 300 350 400 450 500

Cham

ber C

once

ntra

tion

(μg/

m3)

Test Time (min)

Formaldehyde Combo Toluene D-Limonene Formaldehyde Single

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0.00 10 20 30 40 50 60 70

ln(C

/Co)

Test time (min)

Formaldehyde Combo Toluene D-Limonene Formaldehyde Single


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Figure 3: Overlay of chamber concentrations of challenge chemicals natural decay

Figure 4: Overlay of removal rate for challenge chemicals natural decay

0

250

500

750

1000

1250

1500

1750

2000

2250

0 50 100 150 200 250 300 350 400 450 500

Cham

ber C

once

ntra

tion

(μg/

m3)

Test Time (min)

Tolune ND D-Limonene ND Formaldehyde ND

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0.0

0.5

0 10 20 30 40 50 60 70

ln(C

/Co)

Test Time (min)

Toluene ND D-Limonene ND Formaldehyde ND


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SIFT-MS TEST RESULTS:

Figure 5: Chamber concentrations of challenge chemical formaldehyde as single compound

Figure 6: Overlay of removal rate for challenge chemical formaldehyde as single compound

0

250

500

750

1000

1250

1500

1750

0 50 100 150 200 250 300 350 400 450 500 550

Cham

ber C

once

ntra

tion

(μg/

m3)

Test Time (min)

-0.5

-0.4

-0.3

-0.2

-0.1

0

0.1

0 10 20 30 40 50 60 70

ln(C

/Co)

Test Time (min)


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Figure 7: Overlay of chamber concentrations of challenge chemicals as a combination run

Figure 8: Overlay of removal rate for challenge chemicals as a combination run

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

2750

0 100 200 300 400 500 600

Cham

ber C

once

ntra

tion

(μg/

m3)

Test Time (min)

Formaldehyde D-Limonene Toluene

-1.8

-1.6

-1.4

-1.2

-1

-0.8

-0.6

-0.4

-0.2

0

0.2

0 10 20 30 40 50 60 70

ln(C

/Co)

Test Time (min)

Formaldehyde D-Limonene Toluene


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PHOTOGRAPHS:

Figure 9: Photograph of sample as tested in environmental testing chamber.


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SECTION 4 FACILITIES AND EQUIPMENT: GCMS

INSTRUMENTATION USED:

Markes TD-100 Thermal Desorption Agilent 7890A GC Agilent 5975C MS

COLUMN USED: Agilent HP-Ultra 2 (GC) HPLC INSTRUMENTATION USED: Agilent 1260 Infinity Series COLUMN USED: Poroshell 120 EC-C18 SIFT-MS INSTRUMENTATION USED: SYFT Voice200ultra REAGENT IONS USED: H3O+, NO+, and O2

+


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SECTION 5 CHROMATOGRAMS:

Figure 10: Chromatogram of blank chamber with no DUT, individual iVOCs above 20 ng are identified and listed.


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Figure 11: Chromatogram of blank chamber with DUT loaded, individual VOCs above 20ng are identified and listed.


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Figure 12: Chromatogram of 0h_1, individual iVOCs above 20 ng are identified and listed. Acetone and Isopropyl alcohol were observed and are below 10ng.


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Figure 13: Chromatogram of 0h_2, individual iVOCs above 20 ng are identified and listed. Acetone and Isopropyl alcohol were observed and are below 10ng.


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Figure 14: Chromatogram of 60m_1, individual iVOCs above 20 ng are identified and listed.


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Figure 15: Chromatogram of 60m_2, individual iVOCs above 20 ng are identified and listed.


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Figure 16: Chromatogram of 8h, individual iVOCs above 20 ng are identified and listed.

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